- a sailor in the Navy
WordReference Random House Learner's Dictionary of American English © 2026
blue•jack•et /ˈbluˌdʒækɪt/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Militarya sailor, esp. in the U.S. or British navy.
blue•jack•et
(blo̅o̅′jak′it),USA pronunciation n.
- Militarya sailor, esp. in the U.S. or British navies.
- blue + jacket 1820–30
Collins Concise English Dictionary © HarperCollins Publishers::
bluejacket /ˈbluːˌdʒækɪt/ n