/ Dictionary / Index O Onions: Meaning and Definition of Find definitions for: On•ions Pronunciation: (un'yunz), [key] 1873–1965, English lexicographer and philologist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: onions (Thesaurus) onion rings onionskin Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language