/ Dictionary / Index O oast-house: Meaning and Definition of Find definitions for: oast-house Pronunciation: (ōst'hous"), [key] — pl. -hous•es oast. a building housing several oasts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oast-house (Thesaurus) oast oat Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language