/ Dictionary / Index A asseveration: Meaning and Definition of Find definitions for: as•sev•er•a•tion Pronunciation: (u-sev"u-rā'shun), [key] — n. the act of asseverating. an emphatic assertion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: asseveration (Thesaurus) asseverate asshole Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language