REBOOT is a playable word

reboot Scrabble® Dictionary

verb
rebooted, rebooting, reboots
41 Playable Words can be made from "REBOOT"
   2-Letter Words (9 found)
   3-Letter Words (18 found)
   4-Letter Words (12 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)