From Longman Dictionary of Contemporary Englishman-of-warˌman-of-ˈwar (also man-o'-war) /ˌmæn ə ˈwɔː $ -ˈwɔːr/ noun (plural men-of-war) [countable] PMNa ship with guns that was used in the past in sea battles
Examples from the Corpus
man-of-war• Our cog was a sturdy merchantman escorted by a small man-of-war. 