PONTOON is a playable word

pontoon Scrabble® Dictionary

noun
pl. pontoons
a flat-bottomed boat
22 Playable Words can be made from "PONTOON"
   2-Letter Words (5 found)
   3-Letter Words (10 found)
   4-Letter Words (5 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)