/ Dictionary / Index A adjoining: Meaning and Definition of Find definitions for: ad•join•ing Pronunciation: (u-joi'ning), [key] — adj. being in contact at some point or line; located next to another; bordering; contiguous: the adjoining room; a row of adjoining town houses. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: adjoining (Thesaurus) adjoin adjoint Related Content Daily Word Quiz: foliage Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language