Captain, also known as General, is an enemy in Final Fantasy IV. It leads a band of two Baron Warriors to attack Fabul Castle. The Captain will flee once the Baron Warriors die, so it is advised to kill it first to earn more EXP.
Captain and chief officer are overlapping terms, formal or informal, for the commander of a military unit, the commander of a ship, airplane, spacecraft, or other vessel, or the commander of a port, fire department or police department, election precinct, etc. Captain is a military rank in armies, navies, coast guards, etc., typically at the level of an officer commanding a company of infantry, a ship, or a battery of artillery, or similar distinct unit.