sigma
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sigma¹
- /ˈsɪɡmə/
Rhymes with -ɪɡmə
Where it comes from
From Ancient Greek σῖγμα (sîgma), probably from the root σῑγ- (sīg-) as seen in σίζω (sízō, “to hiss”) + -μα (-ma, nominal suffix).
noun sigmas · sigmata
- The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient. Their names, which are expressive of some bodily or mental excellence, all end with the same letter---the letter which is called San by the Dorians, and Sigma by the Ionians.
- 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. 2011', Paul Rincon, (bbc.co.uk) LHC: Higgs boson 'may have been glimpsed None of the spikes seen by the experiments is at much more than the "two sigma" level of certainty. A level of "five sigma" is required to claim a discovery, meaning there is less than a one in a million chance the data spike i
- A sigma male (a self-reliant and assertive male).
adjective more sigma · most sigma
- Possessing characteristics of a sigma male.
Sigma²
proper noun
- A municipality of Capiz, Philippines.
Thesaurus
Closest in meaning: ess, fire, aldrich, addition, sum, summation, total, aggregate, accumulation, summing, totality, entirety, cumulative, series, final sigma, lunate sigma
Translations
Talk about this word "sigma." Wiktionary, via Micwyn, micwyn.com/word/sigma. Accessed 6 Nov. 2026. sigma. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/sigma "sigma." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/sigma.Cite this
@misc{sigma_2026,
title = {sigma},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/sigma},
urldate = {2026-11-06}
}
