/ Dictionary / Index C closed rule: Meaning and Definition of Find definitions for: closed' rule' Pronunciation: [key] — Parl. Proc. Parl. Proc. a rule that prohibits amendments to a bill from the floor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. closed primary closed season Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language