/ Dictionary / Index C congestion: Meaning and Definition of Find definitions for: con•ges•tion Pronunciation: (kun-jes'chun), [key] — n. overcrowding; clogging: severe traffic congestion. an excessive or abnormal accumulation of blood or other fluid in a body part or blood vessel: pulmonary congestion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: congestion (Thesaurus) congest congestive heart failure Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language