/ Dictionary / Index N necessary stool: Meaning and Definition of Find definitions for: nec'essary stool" Pronunciation: [key] close-stool. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. necessary necessitarian Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language