sigma
/ˈsɪɡmə/noun
High SchoolNot in standard dictionaries
1
The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient.
2
The symbol Σ, used to indicate summation of a set or series.
3
The symbol σ, used to indicate one standard deviation from the mean, particularly in a normal distribution.
4
A sigma male (a self-reliant and assertive male).
Sound Patterns & Rhymes
Alliteration
Words starting with the same consonant sound — used in poetry and prose to create rhythm, emphasis, and memorable phrasing (e.g. “Peter Piper picked”)
Assonance
Words sharing similar vowel sounds regardless of starting letter — creates internal melody in writing
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