Definition that contains petty officer
- boatswain a petty officer on a merchant ship who controls the work of other seamen
- bosun a petty officer on a merchant ship who controls the work of other seamen
- bos'n a petty officer on a merchant ship who controls the work of other seamen
- master-at-arms the senior petty officer; responsible for discipline aboard ship
- bo's'n a petty officer on a merchant ship who controls the work of other seamen
- bo'sun a petty officer on a merchant ship who controls the work of other seamen