/ Dictionary / Index C Capitol: Meaning and Definition of Find definitions for: Cap•i•tol Pronunciation: (kap'i-tl), [key] — n. the building in Washington, D.C., used by the Congress of the U.S. for its sessions. (often l.c.) a building occupied by a state legislature. the ancient temple of Jupiter at Rome, on the Capitoline. the Capitoline. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: capitol (Thesaurus) capitation Capitol Hill Related Content Daily Word Quiz: tranquil Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language