/ Dictionary / Index O one-man: Meaning and Definition of Find definitions for: one-man Pronunciation: (wun'man"), [key] — adj. of or pertaining to, or operated, performed, or used by one person: a one-man office; a one-man band. preferring or seeking romantic involvement with one man only: a one-man woman. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: one-man (Thesaurus) one-lunger one-many Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language