Sigma (letter)
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| Greek alphabet | |
|---|---|
| Α α Alpha | Β β Beta |
| Γ γ Gamma | Δ δ Delta |
| Ε ε Epsilon | Ζ ζ Zeta |
| Η η Eta | Θ θ Theta |
| Ι ι Iota | Κ κ Kappa |
| Λ λ Lambda | Μ μ Mu |
| Ν ν Nu | Ξ ξ Xi |
| Ο ο Omicron | Π π Pi |
| Ρ ρ Rho | Σ σ Sigma |
| Τ τ Tau | Υ υ Upsilon |
| Φ φ Phi | Χ χ Chi |
| Ψ ψ Psi | Ω ω Omega |
| obsolete letters | |
| [[Digamma|Template:Polytonic Digamma]] | [[San (letter)|Template:Polytonic San]] |
| [[Qoppa|Template:Polytonic Qoppa]] | [[Sampi|Template:Polytonic Sampi]] |
Sigma (upper case Σ, lower case σ, alternative ς) is the 18th letter of the Greek alphabet. In the system of Greek numerals it has a value of 200. When used at the end of a word, and the word is not upper case, the final form (ς) is used.
In early forms of Greek writing and in the Middle Ages, the "lunate sigma" that looks like the letter C was often used. It can still sometimes be seen in inscriptions in Greek Orthodox churches, for example, where, for example, the whole of God's creation may be denoted by the word ΚΟCΜΟC (cosmos), which in the modern form of writing Greek would be ΚΟΣΜΟΣ.
In a practice similar to faux Cyrillic, capital sigmas are sometimes used in place of Roman Es to give a Greek flavour to titles or text. See for example the film "My Big Fat GRΣΣK Wedding". To Greek people, as well as those who have studied ancient or modern Greek or technical fields in which the letter is used, such titles seem ridiculous.
See also
- Sigma – for other meanings.da:Sigma (bogstav)
de:Sigma el:Σίγμα es:Sigma fr:Σ ja:Σ pl:Sigma pt:Σ fi:Sigma zh:Σ