FLATLAND is a playable word

flatland Scrabble® Dictionary

noun
pl. flatlands
land lacking significant variation in elevation
46 Playable Words can be made from "FLATLAND"
   2-Letter Words (10 found)
   3-Letter Words (17 found)
   4-Letter Words (14 found)
   5-Letter Words (4 found)
   8-Letter Words (1 found)