DUPLEXER is a playable word

duplexer Scrabble® Dictionary

noun
pl. duplexers
an electronic switching device
103 Playable Words can be made from "DUPLEXER"
   2-Letter Words (9 found)
   3-Letter Words (28 found)
   6-Letter Words (10 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)