sigma Meaning & Definition
/ˈsɪɡmə/
What Does Sigma Mean?
Sigma is used as a noun meaning The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient. It can also mean The symbol Σ, used to indicate summation of a set or series. As an adjective, it means Possessing characteristics of a sigma male.
Word Facts for Sigma
| Part of speech | noun, adjective |
|---|---|
| Pronunciation | /ˈsɪɡmə/ |
| Plural | sigmas |
| Comparative / superlative | more sigma, most sigma |
Sigma Definition (Noun)
- The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient.
- The symbol Σ, used to indicate summation of a set or series.
- The symbol σ, used to indicate one standard deviation from the mean, particularly in a normal distribution.
- A sigma male (a self-reliant and assertive male).
Sigma as an Adjective
- Possessing characteristics of a sigma male.
Noun
- The eighteenth letter of the Classical and Modern Greek alphabets, the twentieth letter of Old and Ancient.
Synonyms of Sigma
The source does not list synonyms for this entry.
Sigma synonyms and antonyms →Word Forms & Grammar
sigma (plural sigmas or sigmata)
sigma (comparative more sigma, superlative most sigma)
Words That Rhyme With Sigma
Origin of Sigma
From Ancient Greek σῖγμα (sîgma), probably from the root σῑγ- (sīg-) as seen in σίζω (sízō, “to hiss”) + -μα (-ma, nominal suffix).[1][2]
Frequently Asked Questions About Sigma
Is sigma a noun or an adjective?
Sigma is mainly used as a noun, but it can also be used as an adjective.
What is the plural of sigma?
The plural of sigma is sigmas.
What are the comparative and superlative forms of sigma?
The comparative form is more sigma and the superlative form is most sigma.