sigmanoun [ C or U ]
/ˈsɪɡ.mə//ˈsɪɡ.mə/symbol Σ, σthe 18th letter of the Greek alphabet
Thesaurus: synonyms and related words
Letters of alphabets
- A, a
- alphabetic
- B, b
- C, c
- chi
- I, i
- iota
- J, j
- K, k
- kappa
- phi
- psi
- Q, q
- R, r
- rho
- Y, y
- Z, z
- zed
- zee
- zeta
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