What is sigma nu letter?

The Sigma Nu letter is the letter "Σ" in the Greek alphabet. It is one of the 24 letters in the Greek alphabet and is commonly used in fraternal organizations, including the Sigma Nu fraternity. The letter represents the sound "s" in the English language. In Sigma Nu, the letter represents the fraternity's values of Love, Honor, and Truth. The fraternity was founded at the Virginia Military Institute in 1869 and has since spread to over 160 campuses across the United States. The Sigma Nu letter is often used in fraternity branding and merchandise.