FUNCTIONING is a playable word

function Scrabble® Dictionary

verb
functioned, functioning, functions
to be in action

150 Playable Words can be made from "FUNCTIONING"

   2-Letter Words (14 found)

   8-Letter Words (4 found)

   9-Letter Words (3 found)

   10-Letter Words (1 found)

   11-Letter Words (1 found)