1. (noun) a petty officer on a merchant ship who controls the work of other seamen

• bo's'n
• bo'sun
• boatswain
• bos'n

1. (noun) a petty officer on a merchant ship who controls the work of other seamen

• gob
• jack
• jack-tar
• mariner
• old salt
• sea dog
• seafarer
• seaman
• tar