/ Dictionary / Index E expel: Meaning and Definition of Find definitions for: ex•pel Pronunciation: (ik-spel'), [key] — -pelled, -pel•ling. to drive or force out or away; discharge or eject: to expel air from the lungs; to expel an invader from a country. to cut off from membership or relations: to expel a student from a college. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: expel (Thesaurus) expeditious expellant Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language