/ Dictionary / Index C Capitol Hill: Meaning and Definition of Find definitions for: Cap'itol Hill' Pronunciation: [key] the small hill in Washington, D.C., on which the Capitol stands. the U.S. Congress. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Capitol Capitoline Related Content Daily Word Quiz: longevity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language