/ Dictionary / Index O onionskin: Meaning and Definition of Find definitions for: on•ion•skin Pronunciation: (un'yun-skin"), [key] — n. a thin, lightweight, translucent, glazed paper, used esp. for making carbon copies. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: onionskin (Thesaurus) Onions Onitsha 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