sugma meaning. sigma: 1 n the 18th letter of the Greek alphabet Type of: alphabetic character , letter , letter of the alphabet the conventional characters of the alphabet used to represent speechSigma Males or Sigma Male is a slang term referring to a supposed classification for men who are successful and popular, but also silent and rebellious, a type of man who likes to "play by his own rules. sugma meaning

 
sigma: 1 n the 18th letter of the Greek alphabet Type of: alphabetic character , letter , letter of the alphabet the conventional characters of the alphabet used to represent speechSigma Males or Sigma Male is a slang term referring to a supposed classification for men who are successful and popular, but also silent and rebellious, a type of man who likes to "play by his own rulessugma meaning  the 18th letter of the Greek alphabet 2

Sigma (Σ) is the 18th letter of the Greek alphabet and is used to represent the voiceless postalveolar fricative sound, similar to ‘s’ in English. This page is about the meaning, origin and characteristic of the symbol, emblem, seal, sign, logo or flag: Sigma. Related: Single by choice meaning. 2. A disease that ligma progresses into if the sufferer/fortnite player survives stage 4 ligma for several weeks. By measuring the variability within a dataset, sigma provides valuable insights into the distribution of data points. While the alpha male quantifies himself on his high position in the social hierarchy, a sigma male prefers to forego the social hierarchy and need for external validation altogether and pursue internal strength instead. A result that has a statistical significance of five sigma means the almost certain likelihood that a bump in the data is caused by a new phenomenon, rather than a statistical fluctuation. Consider some of the significant distinctions between Three Sigma versus Six Sigma: Level of accuracy. Sigma is a Greek letter used in statistical analysis to signify a standard deviation – that is, a measure of how far a data point strays from the norm. Looking for the definition of SUGMA? Find out what is the full meaning of SUGMA on Abbreviations. 3. 9 percent of results must fall within six standard. Defined here in Chapter 3. Roball. , the name Sigma means "Man of the casino". Ligma, Sugma. $sigma$ is the population standard deviation, which is generally unknown. Sigma male is actually a modern slang term that is used recently. Sigma is reserved for Sum or summation or the summing point. It also has a powerful religious meaning within the context it was used in the Bible verses when God made the statement “I. Ligma and sugma are used as a setup for a popular joke among kids. They tend to be lone wolves, preferring to operate independently rather than as part of a group. In fact, some may even argue that this archetype is superior to the alpha male because of its special combination of personality traits. Six Sigma is a set of tools and techniques for quality control and process improvement. In the case of ligma, when someone uses ligma, the goal is to get another person to ask “What’s ligma?”. Our Greek letters are not affiliated with any sorority or fraternity. Every type possesses its individual characteristics that make it differ from the others. A sigma is an independent loner who has no interest in fitting in or appearing cool. Be sure to LIKE, SUBSCRIBE, and RING THE BELL! Turn on reminders for the channel so you don't miss live episodes of 'The Pregame' right here on my YouTube ch. It provides methods to improve efficiencies in a business structure, improve the quality of the. What does Sigma mean? Information and translations of Sigma in the most comprehensive dictionary definitions resource on the web. In the system of Greek. The definition of the sigma notation seems to be surprisingly vague, and I couldn't find anything that would explicitly prohibit the usage of negative indices or negative boundaries, as long as they are used in a consistent way (lower boundary < upper boundary). Sigma, or the standard deviation, quantifies the dispersion of data points around the mean. Wikipedia ; Ancient Greek [edit] Alternative forms [edit] Ϲ (S) Etymology [edit] Sigma definition: the 18th letter of the Greek alphabet. But Σ can do more powerful things than that!. So, if we define two different measure $mu, u$ on the same $sigma$-algebra, then of course they have the same measurable sets. (chiefly Internet, humorous) An interjection designed to sound similar to “suck my” (especially used to trick a person into asking the meaning). A very self-reliant person, kinda like an Alpha except higher. , the name Sigma is of American origin and means "Sigma male lone wolf sigma". Often, sigma females don’t last long in traditional office environments — because authority and hierarchical frameworks are. Meaning of sugma in Nepali. Sigma is reserved for Sum or summation or the summing point. There are five main principles of Six Sigma: 1. Six Sigma is a methodology that focuses on using statistical information to reduce defects in the manufacturing process to satisfy consumer expectations. Wikipedia ; Ancient Greek [edit] Alternative forms [edit] Ϲ (S) Etymology [edit]Sigma personality traits in men. Social commentators and members of the manosphere have different. We investigate the meaning of the. clip_centralx. Summation Notation. Sigma is a measure which uses the characteristic of past data to make judgments about how the process will perform in the future. e. Sigma Face, also known as Sigma Male Face, Sigma Meme Face or Sigma Girl Face, refers to a TikTok trend in which people replicate a memorable facial expression made by Patrick Bateman in the film American Psycho (also known as the Ooh Face), typically in reaction to sigma activity. Lucky Gemstone: Tanzanite. In the system of Greek numerals, it has a value of 200. Sigma lenses have been getting more and more popular in recent years thanks to some truly professional-grade optics (like the 35mm f/1. As a sigma empath, you probably have a close circle of friends that you keep up with. 5. It often used with the inverting input of Op Amps as each resistor value controls the weighting value of gain for each input. 👉 Learn how to find the partial sum of an arithmetic series. They possess many of the alpha characteristics — with a twist. It’s a methodology that is well rooted in mathematics and statistics. This overlap occurs in two major ways, giving rise to. 2. Morse, and Charles I. The percentage of data points that would lie within. 5 sigma from the mean with a defect rate of 3. Sigma males like silence more than busy talkative moments. Mistake can only mean "random chance". 7 percent. For example, the sum of J first whole numbers can be represented in the following manner: Í E á Ü @ 5Sigma in Statistical Analysis: What You Need to Know. Ὀδυσσεύς. These lens elements reduce chromatic aberration and other lens aberrations. In the Greek language, it represented the /s/ sound. Three Sigma allows for a greater number of defects per million, whereas Six. Sigma males share many traits in common with the alpha archetype, though their tendency to walk outside of the lines of traditional social dominance hierarchies sets them apart and. Sigma males are self-sufficient. What is the sugma meaning? We are devoted to uncovering and sharing insights on sugma meaning. Six Sigma is a set of methodologies and tools used to improve business processes by reducing defects and errors, minimizing variation, and increasing quality and efficiency. . net dictionary. Most humans have a mix of alpha and beta personality traits, with one or the other personality grouping dominating and defining their personality. Just like an alpha woman, sigma females have all the personality traits of great leaders. The air of mystery surrounding these types of men usually makes everyone they encounter want to know more about them. With SIGMA rules can be tested in environments, and tuned easily. A Simple Guide To The Slang Internet Term Everyone's Using. APO – Apochromatic. Coordinate terms [edit] (classification of formulae): Π, Δ; See also [edit] Σ on Wikipedia. However in the symbolic schematic it may be the + or - depending on how it is configured. The term first gained attention on social media platforms, especially on Twitter, TikTok, and various meme communities. Digamma or wau (uppercase: Ϝ, lowercase: ϝ, numeral: ϛ) is an archaic letter of the Greek alphabet. . Standard Deviation (also known as Sigma or σ) determines the spread around this mean/central tendency. They reject conventional markers of success, such as high-powered jobs, financial stability, and family life. summa cum laude meaning: 1. In order to master the techniques explained here it is vital that you undertake plenty of practice exercises so that they become second nature. For example, a sigma-algebra is a collection of sets closed under countable union and a sigma-compact topological. The sigma is always combined with another symbol representing the quantities to be added. Dictionary Thesaurus Sentences Grammar. Six Sigma is a defined and disciplined business methodology to increase customer satisfaction and profitability by streamlining operations, improving quality and eliminating defects in every organization-wide process. It is often used in wordplay jokes, where the punchline relies on a play of words that sound like a vulgar. 4 parts per million (PPM). The Jade is the lucky gemstone in the case of people named Sigma. This last name is most frequently occurring in Papua New Guinea, where it is carried by 51 people, or 1. They might make drastic adjustments, such as disappearing, to pursue their dream. Q: What is the Numerology details of Sugma Name? A: The Sugma Numerology details is Numerology. A sigma is an independent. Sigma empaths can appear cold and aloof at times. Sigma males tend to be good listeners as they understand the value of silence and respect when others speak as a matter of mutual courtesy. Sigma Symbols: Meaning: Greek Capital Letter Sigma Symbol (Σ) The Greek capital letter sigma is a mathematical symbol representing the sum of a series of terms. However in the symbolic schematic it may be the + or - depending on how it is configured. A normal distribution, often represented by a bell curve, is a common model used in many experiments. Beside numbers, other types of values can be summed as well: functions, vectors, matrices, polynomials and, in general, elements of any type of mathematical objects on which an operation denoted. In the system of Greek numerals, it has a value of 200. Sigma (uppercase Σ, lowercase σ) is the 18th letter of the Modern Greek alphabet. . sigma - WordReference English dictionary, questions, discussion and forums. A Sigma male is an introverted alpha male without a pack. A set in a measure space X is said to have σ -finite measure if it is a countable union of sets with finite measure. Defined here in Chapter 3. In a world of social media, fast fashion, and new crazes, a sigma female will never follow the crowd. It’s meant to be similar to “updog,” in that ligma sounds similar to “lick my” and sugma sounds similar to “suck my. SIGMA is easily understood, testable, and tunable. It is said that LIGMA is the second stage and last. Something that is within +/-6s, Six Sigma, from the centerline of a control chart was created by a process that is considered well controlled. She’s Independent. Sigma Sigma Sigma is a member of the National Panhellenic Conference (NPC), an umbrella organization encompassing 26 national sororities or women's fraternities, which focus on service, education, scholarship programming and social activities. It would help if you would at least tell us what page that was on so we could check exactly what it said!. The 18th letter of the Greek alphabet. This is a summation of the expression 2 n − 1 for integer values of n from 1. They get along well with alphas or sigma alphas. As an upper case letter (Sigma), it is used as a symbol for sums and series. Independence is as vital as air to sigma females. Standard Deviation. Sugoma's channel got a large amount of popularity in only it's first. She is wise and knowledgeable. Alpha vs. The uppercase use of sigma denotes a summation while the lowercase represents a measure of variation. s. Definition of sugma in the Definitions. 1. If you doubt yourself as a sigma INFJ, then you will most likely spend a lot of time alone and resent people who give you their opinions and suggestions about how you should act. 1. The uppercase use of sigma denotes a summation while the lowercase represents a measure of variation. Lean Six Sigma represents a methodology for overall organizational culture change. LIGMA was first coined in May of 2018 and used i. The sigma meme has been frequently used as a reaction image and has also been used in a variety of other contexts. Dominance, but not in a traditional sense. Britannica Dictionary definition of SIGMA. The faster-than-light. This term is used to describe a subculture of masculinity in this modern life. Five Facts About: The Greek Symbol Sigma. mathematics. After we write the rule we need to save the file and use sigmac (available in the repo) to compile the rule. At its origin, Ligma is a fictitious disease. A – Art. On this chart of a ‘normal’ distribution, showing the classic ‘bell curve’ shape, the mean (or average) is the vertical line at the center, and the vertical lines to either side represent intervals of one, two, and three sigma. Learn more. atan. 5 billion views on TikTok . A sigma woman isn't afraid to stand alone, but she is strong enough to take care of those around her if needed. is that mean is the average of a set of values, calculated by summing them together and dividing by the number of terms; the arithmetic mean while sigma is the symbol σ, used to indicate one standard deviation from the mean, particularly in a normal distribution. 1. The Times of India called the Ligma–Johnson. Ligma and sugma are used as a setup for a popular joke among kids. Are you capable of seeing auras around other people or animals? Auras are colorful energetic fields. In other words, there is little deviation from the standard and is within tolerance. ago. 2. Their names dub Greek Alphabet letters. The main objective is to maximize the benefits for customers. this is exaxtly what happens in physics (most of the time). Sigma definition: the 18th letter of the Greek alphabet. Sigma Male vs Alpha Male. We’ve gathered for you all the best “ligma jokes” extensions – see the list below: Dooma. The objective of Six Sigma quality is to. Posses leadership qualities. The fraternity's founders, A. Sigma males. Traits of a sigma female. A two sigma standard deviation includes 95. . Greek and Coptic. 4 defects per million opportunities. Gamma males are known to be one of the most undesirable male personality types. It has the capability of improving performance while decreasing process discrepancy. Ninja is the alias of Richard Tyler Blevins, a professional gamer and popular streamer of the online video game Fortnite. So it’s not me who fits into the sigma male personality type. Summa cum laude is an academic level of distinction used by educational institutions to signify an academic degree received "with highest honor. It often used with the inverting input of Op Amps as each resistor value controls the weighting value of gain for each input. The lucky gemstone for the name Sugma is the Tanzanite, which invokes a major transformation in life and the lessons to be drawn from it. between 8 and 12. He’s extremely introverted. For example, the sum of the first 4 squared integers, `1^2+2^2+3^2+4^2,` follows a simple pattern: each term is of the form `i^2,` and we add up values from `i=1` to `i=4. Often mathematical formulae require the addition of many variables Summation or sigma notation is a convenient and simple form of shorthand used to give a concise expression for a sum of the values of a variable. acos. SIGMA Support. . what all 10 year olds think they are. Noun [ edit] sigma m or f ( invariable) sigma, specifically : the name of the Greek-script letter Σ / σ, ς. The simple definition of a sigma male is an introverted alpha male. A Sigma Female Is Strong, Powerful And Mentally Resilient. Six Sigma (6σ) is a set of techniques and tools for process improvement. griechisch sĩgma, sígma, aus dem Semitischen, vgl. However, you’re not loud, are highly intelligent, self-reliant, and reflective. An important part of your life will most likely be devoted to finding pleasure. In fact, Sugoma's name is just "Amogus" backwards. Also words found in memes such as „ligma balls“ and „sugma ballsack“ . One of the most powerful traits of a sigma female is her charisma and confidence. 5 per cent of the nails, while a three sigma covers 99. Sigma bonds are a result of the head-to-head overlapping of atomic orbitals whereas pi bonds are formed by the lateral overlap of two atomic orbitals. On July 17, 2018, further fueling the hoax was that Ninja—who stopped streaming, apparently because he was on a flight—died of a rare disease called ligma. The small letter sigma (σ) is used to represent standard deviation. In an article published by Vox Day on May 16th, 2010. Then F F is called a σ σ -algebra on Ω Ω if the following are satisfied: (1) ϕ ∈ F ϕ ∈ F. Sigma vs. Alpha symbol is used to denote many things including absorption factor, area, angles and coefficients. SUMMARY. A joke in the Greek language is not necessarily a “Greek joke. This is the reason why a 6σ (Six Sigma. It is a new addition to the personality hierarchy dominated by alpha males. Sigma is a statistical measure that quantifies the dispersion of a data set around its mean. SIGMA - Definition and synonyms of Sigma in the German dictionary. According to a user from Colorado, U. Natural leadership abilities. 2. A sigma male is someone who is successful but doesn’t fit into traditional social hierarchies. Find out the translation of German multilingual translator. Also Amogus spelled backwards. x represents the ith number in the set. Definition of sigma noun in Oxford Advanced Learner's Dictionary. This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: SIGMA . INFJ is a rare personality type in the MBTI personality type, characterized by introverted intuition, feeling, and judging traits. Words used by ni🅱️🅱️as who watch memes. SIGMA meaning: the 18th letter of the Greek alphabet Σ or σ or ς. Sigma: Often represented by the Greek letter Σ, sigma is the average mean of a sum of data. ( linguistics, phonology) Syllable. Stigma ( ϛ) is a ligature of the Greek letters sigma (Σ) and tau (Τ), which was used in writing Greek between the Middle Ages and the 19th century. In chemistry, sigma bonds ( σ bonds) are the strongest type of covalent chemical bond. Unpacking the meaning of summation notation. What does 2 sigma mean in statistics? 95 percent. Symptoms include excessive masturbating. Langston Taylor, Leonard F. In mathematics, summation is the addition of a sequence of any kind of numbers, called addends or summands; the result is their sum or total. ( mathematics, statistics) Standard deviation. Sigma (uppercase Σ, lowercase σ or in word-final position ς; Greek: σίγμα) is the 18th letter of the Greek alphabet. We would like to show you a description here but the site won’t allow us. We would like to show you a description here but the site won’t allow us. A 2 sigma measure would include 10+/-2 (2) i. See examples of SIGMA used in a sentence. 1. Ligma Jokes Extensions – Even Funnier Than the Original. He’s flexible instead of rigid like the alpha male. At its core, it is a process improvement approach for eliminating inefficiencies and improving work processes by identifying the defects’ root causes. It involves the use of a team of experts. A sigma female is a socio-hierarchy personality characterized by independence and mystery. Unlike full-on rebels, sigma males don’t have a problem breaking a few rules or taking some well-calculated risks if it serves their person. Sigma male. . The larger the Sigma, the more dispersed the data will be. 3. 5. Now, let’s look at Sigma Level: it is a high-level baseline metric to understand process capability to meet customer requirements. Definition. The chronic and often fatal condition known as LIGMA is brought on by the BOFA ("biologically offset farkwonian asintits") virus. Greek Small Letter Sigma. Image: Shutterstock. Beta, the successor, is second fiddle (or a software prototype not ready for market). Learn the fascinating origin of the Sugma surname; its meaning & distribution. The Greek capital letter, ∑ ∑ , is used to represent the sum. Sort. A kind of male that's like uhhh. The energy of Tanzanite banishes toxic thoughts and. The sigma male has a high status in the eyes of others. (mathematics): Though there exists a distinct symbol for the purpose of the mathematical summation, the upper case sigma here is often used for convenience. She is driven, ambitious, and. Pi bond: This type of covalent bond is formed by the lateral or sideways overlap of the atomic orbitals. Deviation just means how far from the normal. She is bold, highly sarcastic, intelligent, brave, harmonizer, balanced, and straight to the point. That means "do the summation over all values of n so that you have a result that depends. Who is an Alpha Male – Definition, Qualities 2. A sigma female is independent, loyal, and assertive. sigma翻譯:希臘語字母表的第18個字母。了解更多。Three-Sigma Limits: Three-sigma limit (3-sigma limits) is a statistical calculation that refers to data within three standard deviations from a mean. ,. The ultimate goal of Lean Six Sigma. In summation notation, the sigma meaning refers to the sum, or addition, of multiple. Sugma is also the 419,319 th most frequently used first name globally, borne by 420 people. You are learning the word sugma in Nepali language. It is used to represent the "s" sound in Ancient and Modern Greek. As mentioned, we will use shapes of known area to approximate the area of an irregular region bounded by curves. In effect, this means that an. The sigma male, hatched in a dark and unsavory corner of the internet, might appeal to a few self-styled lone wolves out there. What does sigma bond mean? Information and translations of sigma bond in the most comprehensive dictionary definitions resource on the web. (spatial databases) The select operation. The intention of this joke was to prompt concerned fans to ask what Ligma is, to which participants in the hoax would respond with "ligma balls" ("lick my balls"), a joke. What Is a Sigma Male? In masculinist subcultures, the term “sigma male” is used to describe a popular, successful, but highly independent and self-reliant man. 7 percent. In this unit we look at ways of using sigma notation, and establish some useful rules. To compile a rule you must specify the target SIEM, provide a configuration file and the path to the rule. . ( ‿ ) SYMBL. the 18th letter of the Greek alphabet 2. The red lines in Figure 2 (below) show the extreme case of 1. We can square n each time and sum the result: Sigma ( / ˈsɪɡmə / SIG-mə; [1] uppercase Σ, lowercase σ, lowercase in word-final position ς; Greek: σίγμα) is the eighteenth letter of the Greek alphabet. Meaning of sugma. These lenses are known for their optical performance and power. Hence, a business must understand the needs of their customers and the drivers of sales. What does SIGMA mean? A Simple Guide To The Slang Internet Term Everyone's Using. ABBREVIATIONS; ANAGRAMS; BIOGRAPHIES; CALCULATORS; CONVERSIONS; DEFINITIONS;. In business applications, three-sigma refers. Social status doesn't matter to them, and they prefer to operate autonomously on their own terms. They work out ways to avoid drama and attention, keeping themselves private and, of course, mysterious…. Sigma (uppercase Σ, lowercase σ or in word-final position ς; Greek: σίγμα) is the 18th letter of the Greek alphabet. σ x̅ “sigma-sub-x-bar”; see SEM above. ( mathematics) Braid group algebra. Seen as attractive by others. Sigma is the only one of the 24 Greek alphabet letters that has two different lowercase symbols. In the expression for a sigma function, the value of y is the sum of all its values. | Meaning, pronunciation, translations and examples Quality Glossary Definition: Six Sigma. After the virality of "ligma" in 2018, multiple variants emerged like Sugma ("suck my"), Bofa ("both of"), Sugondese ("suck on these") and the Indonesian city Grabahan ("grab a hand"). SIGMA meaning: the 18th letter of the Greek alphabet Σ or σ or ς. Two-sigma includes 95 percent and three-sigma includes 99. Sigma is the 18th letter of the Greek alphabet. Prioritizing personal goals over relationships. ( phonology, obsolete) a labialized alveolar fricative (value uncertain, possibly IPA [θʷ] ). Six Sigma Certification is a process of verification of an individual's command of the Six Sigma methods and techniques, and of assessing of the individual's skill level using a "Belt. . They very much prefer to do their own thing in their own way. See full list on themostlysimplelife. The small letter sigma (σ) is used to represent standard deviation. A sigma factor. Scientists calculate this by measuring the signal against the expected fluctuations in the background noise across the whole range. Lawl. Explained: Sigma. The symbol Σ (sigma) is generally used to denote a sum of multiple terms. Six Sigma. When you take less than 5 minutes to take a huge poop on the toiletCheck the meaning, and see real examples of sentences with "Sugma". However, they treasure their private space above everything. 1M. plural sigmas. Sigma male has seen most of its usage by the same members of what is known as the manosphere and who use other Greek letters to form a social hierarchy, such as alpha. Sigma can be calculated using the following formula: sigma = square root of [(the sum of (xi – mean) squared] / (n-1)]. If you are not six sigma trained then this book is no good for you unless you are a maths genius. , updog or deez nuts. The sigma meme is a popular internet meme that has been circulating for several years. sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sugoma sug. What is a sigma male vs an alpha male? Sigma males and alpha males are two distinct types of men that have different approaches to life. The word. [1] sigma definition: 1. $Sigma$-Subalgebras Definition of $Sigma$-Subalgebras. And by “might,” we mean “probably. Sigmas are as successful and commanding as alpha males, but more independent and introverted. 2010, Sergio J. Compiling Sigma Rules. “Sigma” is a personality archetype that was created to contrast alpha and beta. net dictionary. According to a user from Indiana, U. Subscribe to newsletters. ” If a process falls within three standard deviations above or below the mean, the defect rates. Sigma males, as they are called, are introverted alpha males who do not rely on the support of a pack. One can easily imagine that typically many different $Sigma$-algebras exist for the same signature $Sigma$. Sugoma. Delta Female. inverse cosine (arccos) of a value or expression. For example, the Greek capital letter Σ is used in algebra to represent the summation operator. Heart symbols Basic latin Non breaking space Combining Enclosing Screen English alphabet. sigma ý nghĩa, định nghĩa, sigma là gì: 1. Sigma male and alpha male similarities include: Strong self-confidence. An extremely rare antibiotic-resistant strain of Ligma virus. inverse tangent (arctangent) of a value or expression. geometric series: A geometric series is a geometric sequence written as an uncalculated sum of. Protect your peace by keeping your friends close and tight-knit. The response to what is ligma/sugma is “Ligma nuts. As such, employees tend to prefer them as a boss over the alpha. Greek Letter Sigma (Σίγμα - Σ) The letter "s" came from the Semitic alphabet, where it was once shaped like latin "W". 99/year. gov. Looking for the definition of SUGMA? Find out what is the full meaning of SUGMA on Abbreviations. It explains how to find the sum using summation formu. I’m much more than a sigma male. " The Sigma Male has also inspired a whole series of other memes relating to his face, his hustle grindset, his stare, and the. Like all viruses in the Bofa family, Sugma is transmissible through both verbal and virtual communication. The popularization of these terms to describe humans. Six Sigma methodologies use data-driven approaches to limit or eliminate defects and mistakes in processes. It refers to a popular, successful, yet highly independent and self-reliant man who does not conform to the traditional male social hierarchy. It was founded at Howard University in Washington, D. Used in stock transaction tables in newspapers to indicate that the stock has been split or that the firm has paid a stock dividend of at least 25% within the past 52 weeks: Getty s. ( mathematics) the symbol Σ, used to indicate summation of a set or series. Greek small letter sigma. . Intelligence and ambition. Sigma Face, also known as Sigma Male Face, Sigma Meme Face, or Sigma Girl Face, refers to a TikTok trend in which people replicate a memorable facial express.