THESAURUS
naval officer
OD, admiral, boatswain, captain, chief engineer, chief mate, chief petty officer, commander, commodore, deck officer, ensign, fleet admiral, lieutenant, lieutenant commander, lieutenant junior grade, master, mate, navarch, navigating officer, navigator, patron, petty officer, pipes, quartermaster, rear admiral, sailing master, second mate, shipmaster, skipper, the Old Man, vice admiral, warrant officer, watch officer