FASTBACK is a playable word

fastback Scrabble® Dictionary

noun
pl. fastbacks
a type of automobile roof
82 Playable Words can be made from "FASTBACK"
   2-Letter Words (8 found)
   3-Letter Words (28 found)
   5-Letter Words (9 found)
   7-Letter Words (2 found)
   8-Letter Words (3 found)