The term comma has various uses;

• comma is the name used for one of the punctuation symbols: ","
• The term comma is also used in music theory for various small intervals that arise as differences between approximately equal intervals. See musical tuning, Pythagorean comma, Septimal comma, and syntonic comma.
• A comma is also a type of butterfly, common in the United Kingdom. Other varieties are found in the United States and Canada. It has a white marking on its underwings resembling a comma.

fr:Comma