GROWNUP is a playable word

grownup Scrabble® Dictionary

noun
pl. grownups
a mature person
55 Playable Words can be made from "GROWNUP"
   2-Letter Words (11 found)
   3-Letter Words (22 found)
   4-Letter Words (13 found)
   5-Letter Words (5 found)
   6-Letter Words (2 found)
   7-Letter Words (2 found)