UNDERBOSS Scrabble 12 Words With Friends 15 Scrabble letter values: U1N1D2E1R1B3O1S1S1 = 12 Definition noun an assistant or second-in-command to a chief (especially in a crime syndicate). See all 384 words you can make from UNDERBOSS → 9-letter words Words starting with U Words ending with S ← Unscramble different letters