/ Dictionary / Index R roomful: Meaning and Definition of Find definitions for: room•ful Pronunciation: (rm'fool, room'-), [key] — pl. -fuls. an amount or number sufficient to fill a room. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: roomful (Thesaurus) room father roomie Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language