SUPERCOMPUTER Scrabble 21 Words With Friends 27 Scrabble letter values: S1U1P3E1R1C3O1M3P3U1T1E1R1 = 21 Definition noun a mainframe computer that is one of the most powerful available at a given time. See all 878 words you can make from SUPERCOMPUTER → 13-letter words Words starting with S Words ending with R ← Unscramble different letters