LEPTON is a playable word

lepton Scrabble® Dictionary

noun
pl. leptons
a subatomic particle
(adjective) leptonic
noun
pl. lepta
a former monetary unit of Greece
57 Playable Words can be made from "LEPTON"
   2-Letter Words (13 found)
   3-Letter Words (19 found)
   5-Letter Words (4 found)
   6-Letter Words (1 found)