the most junior commissioned officer in the Royal Navy and certain other navies
WordReference Random House Unabridged Dictionary of American English © 2025
sub•lieu•ten•ant
(sub′lo̅o̅ ten′ənt),USA pronunciation n.
sub′lieu•ten′an•cy, n.
- British Terms, Militarya navy officer ranking next below a lieutenant.
- sub- + lieutenant 1695–1705
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'sublieutenant' also found in these entries (note: many are not synonyms or translations):