STRENGTHENING Scrabble 18 Words With Friends 22 Scrabble letter values: S1T1R1E1N1G2T1H4E1N1I1N1G2 = 18 Definition noun becoming stronger. noun the act of increasing the strength of something. Examples “strengthen a muscle” See all 573 words you can make from STRENGTHENING → 13-letter words Words starting with S Words ending with G ← Unscramble different letters