Synonyms for adjoin Found 10 synonyms across 2 meanings for “adjoin”. lie adjacent to another or share a boundary (verb) borderedgeabutmarchbutt be in direct physical contact with (verb) touchmeetcontact Explore Related Words Rhymes with adjoinSynonyms for borderSynonyms for edgeSynonyms for abutSynonyms for marchSynonyms for butt Synonym Finder | Rhyme Finder | Poetry Editor