"Semper Fi" is a shortened form of the Latin phrase "Semper Fidelis," which means "always faithful" or "always loyal." It is famously known as the motto of the United States Marine Corps, adopted officially in 1883
. The phrase embodies the Marines' values of honor, courage, and commitment, representing their unwavering loyalty to their fellow Marines, their mission, and their country
. In everyday use among Marines, "Semper Fi" serves as a greeting, farewell, or expression of camaraderie and mutual respect, symbolizing a lifelong bond and dedication that extends beyond active service
. It is also used in ceremonies and as a motivational rallying cry, reflecting the Corps' fighting spirit and resilience
. Historically, "Semper Fidelis" has been used as a motto by various military units and towns in Europe since at least the 14th century, but its association with the U.S. Marine Corps is the most well-known today
. In summary, "Semper Fi" means "always faithful," signifying steadfast loyalty and commitment, especially within the Marine Corps community.
