The letter C in the Greek alphabet is represented by the letter ‘Gamma’ (Γ, γ).
Gamma is the third letter of the Greek alphabet and is used to denote a variety of values in mathematics and science, as well as serving a phonetic role in the Greek language. In uppercase, Gamma looks like a ‘Γ’, while in lowercase it resembles a ‘γ’.
It’s interesting to note that the gamma sound is typically a voiced velar stop, and its pronunciation can vary based on its position within a word. In modern Greek, it is pronounced like the ‘y’ in ‘yes’ when it appears before certain vowels. The letter has also influenced several letters in other alphabets, including the Latin C and the Cyrillic Г.