QUOINS is a playable word

quoin Scrabble® Dictionary

verb
quoined, quoining, quoins
to secure with a type of wedge
33 Playable Words can be made from "QUOINS"
   2-Letter Words (12 found)
   3-Letter Words (13 found)
   4-Letter Words (5 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)