STEEPEN is a playable word

steepen Scrabble® Dictionary

verb
steepened, steepening, steepens
to make steep
54 Playable Words can be made from "STEEPEN"
   2-Letter Words (6 found)
   3-Letter Words (15 found)
   5-Letter Words (10 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)