TUBIFEX is a playable word

tubifex Scrabble® Dictionary

noun
pl. tubifexes
an aquatic worm
39 Playable Words can be made from "TUBIFEX"
   2-Letter Words (13 found)
   3-Letter Words (17 found)
   4-Letter Words (7 found)
   5-Letter Words (1 found)
   7-Letter Words (1 found)