1. The name of the Greem letter ?, ?, ?, equal to our S.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• jimma,
• stagma,
• sigle,
• stygma,
• sigm,
• simmi,
• scema,
• signam,
• sigar,
• seema,
• signa,
• sugra,
• sigth,
• pigme,
• sigmun,
• simga,
• stigima,
• ciema,
• sigal,
• cinma

• sisham,
• sissom,
• sikkim.

The adjective form of the word "sigma" is "sigmaic".

The plural of the "sigma" can be the "sigmas".

The singular of the "sigma" can be the "sigma".