What is the meaning of 49er?

A class of two-handed double-trapeze dinghy (from its maximum length of 16 feet, approx. 4900 millimetres).

A miner or other person who took part in the California Gold Rush of 1849.

A player for the San Francisco 49ers, an NFL team.

A student or player on a sports team at California State University, Long Beach (more commonly known as “Long Beach State”, founded in 1849).

A student or player on a sports team at the University of North Carolina at Charlotte (more commonly known as “Charlotte” in a sports context).

Source: wiktionary.org

See also