PROBER is a playable word

prober Scrabble® Dictionary

noun
pl. probers
one that probes
35 Playable Words can be made from "PROBER"
   2-Letter Words (9 found)
   3-Letter Words (14 found)
   4-Letter Words (6 found)
   5-Letter Words (5 found)
   6-Letter Words (1 found)