/ Dictionary / Index O obelisk: Meaning and Definition of Find definitions for: ob•e•lisk Pronunciation: (ob'u-lisk), [key] — n. a tapering, four-sided shaft of stone, usually monolithic and having a pyramidal apex. something resembling such a shaft. an obelus. dagger (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: obelisk (Thesaurus) obelia obelize Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language