SQUARE is a playable word

square Scrabble® Dictionary

adjective
squarer, squarest
having four equal sides and four right angles; rigidly conventional
verb
squared, squaring, squares
to make square
44 Playable Words can be made from "SQUARE"
   2-Letter Words (7 found)
   3-Letter Words (17 found)
   4-Letter Words (14 found)
   5-Letter Words (5 found)
   6-Letter Words (1 found)