GRANDKID is a playable word

grandkid Scrabble® Dictionary

noun
pl. grandkids
the child of one's son or daughter
110 Playable Words can be made from "GRANDKID"
   2-Letter Words (12 found)
   5-Letter Words (13 found)
   6-Letter Words (4 found)
   7-Letter Words (2 found)
   8-Letter Words (1 found)