/ Dictionary / Index O one-many: Meaning and Definition of Find definitions for: one-man•y Pronunciation: (wun'men'ē usually read as wun't&schwa&sylpmen'ē), [key] — adj. Logic, Math. (of a relation) having the property that an element may be assigned to several elements but that given an element, only one may be assigned to it. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. one-man 1-naphthol 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