FLATTOP is a playable word

flattop Scrabble® Dictionary

noun
pl. flattops
an aircraft carrier
57 Playable Words can be made from "FLATTOP"
   2-Letter Words (11 found)
   3-Letter Words (26 found)
   4-Letter Words (15 found)
   5-Letter Words (4 found)
   7-Letter Words (1 found)