/ Dictionary / Index C commission plan: Meaning and Definition of Find definitions for: commis'sion plan" Pronunciation: [key] a system of municipal government in which all the legislative and executive powers of the city are concentrated in the hands of a commission. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. commission house commissure Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language