SUPERTAX Scrabble 17 Words With Friends 19 Scrabble letter values: S1U1P3E1R1T1A1X8 = 17 Definition noun an additional tax on certain kinds of income that has already been taxed. — synonyms: surtax See all 264 words you can make from SUPERTAX → 8-letter words Words starting with S Words ending with X ← Unscramble different letters