PERENNATION Scrabble 13 Words With Friends 17 Scrabble letter values: P3E1R1E1N1N1A1T1I1O1N1 = 13 Definition noun the process of living through a number of years (as a perennial plant). See all 438 words you can make from PERENNATION → 11-letter words Words starting with P Words ending with N ← Unscramble different letters