/ Dictionary / Index O open-end: Meaning and Definition of Find definitions for: o•pen-end Pronunciation: (ō'pun-end'), [key] — adj. of, pertaining to, or like an open-end investment company. open-ended (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. open door open-ended Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language