SUBFILE is a playable word

subfile Scrabble® Dictionary

noun
pl. subfiles
a subdivision of a file
79 Playable Words can be made from "SUBFILE"
   2-Letter Words (11 found)
   3-Letter Words (26 found)
   5-Letter Words (12 found)
   6-Letter Words (1 found)
   7-Letter Words (2 found)