CORUNDUM /kəˈɹʌn.dəm/ Scrabble 13 Words With Friends 18 Scrabble letter values: C3O1R1U1N1D2U1M3 = 13 Definition noun very hard mineral used as an abrasive. — synonyms: corundom See all 71 words you can make from CORUNDUM → 8-letter words Words starting with C Words ending with M ← Unscramble different letters