ISOMORPHOUS Scrabble 18 Words With Friends 20 Scrabble letter values: I1S1O1M3O1R1P3H4O1U1S1 = 18 Definition adjective having similar appearance but genetically different. — synonyms: isomorphic See all 241 words you can make from ISOMORPHOUS → 11-letter words Words starting with I Words ending with S ← Unscramble different letters