CAPSTAN is a playable word

capstan Scrabble® Dictionary

noun
pl. capstans
a machine used to hoist weights
83 Playable Words can be made from "CAPSTAN"
   2-Letter Words (7 found)
   3-Letter Words (24 found)
   5-Letter Words (13 found)
   6-Letter Words (4 found)
   7-Letter Words (3 found)