/ Dictionary / Index C closed plan: Meaning and Definition of Find definitions for: closed' plan' Pronunciation: [key] an office floor plan consisting of fully enclosed office spaces. Cf. open plan. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. closedown closed position Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language