/ Dictionary / Index A ascendancy: Meaning and Definition of Find definitions for: as•cend•an•cy Pronunciation: (u-sen'dun-sē), [key] — n. the state of being in the ascendant; governing or controlling influence; domination. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ascendancy (Thesaurus) ascend ascendant 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