SWELLER is a playable word

swell Scrabble® Dictionary

adjective
sweller, swellest
stylish
verb
swelled, swollen, swelling, swells
to increase in size or volume
52 Playable Words can be made from "SWELLER"
   2-Letter Words (6 found)
   3-Letter Words (15 found)
   4-Letter Words (19 found)
   5-Letter Words (9 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)