n A commissioned officer in the United States Navy, United States Coast Guard|Coast Guard, National Oceanic and Atmospheric Administration Commissioned Corps|NOAA Corps, or Public Health Service Commissioned Corps|PHS Corps of a grade superior to a commander and junior to a rear admiral (lower half). A captain is equal in grade or rank to an United States Army|Army, United States Marine Corps|Marine Corps, or United States Air Force|Air Force colonel.
n One of the athletes on a sports team who designated to make decisions, and is allowed to speak for his team with a referee or official.