Manofwar \Man`*of*war"\, n; pl. {Men-of-war}. A government vessel employed for the purposes of war, esp. one of large size; a ship of war. {Man-of-war bird} (Zo["o]l.), The frigate bird; also applied to the skua gulls, and to the wandering albatross. {Man-of-war hawk} (Zo["o]l.), the frigate bird. {Man-of-war's man}, a sailor serving in a ship of war. {Portuguese man-of-war} (Zo["o]l.), any species of the genus {Physalia}. See {Physalia}.