OUTKILL is a playable word

outkill Scrabble® Dictionary

verb
outkilled, outkilling, outkills
to surpass in killing
32 Playable Words can be made from "OUTKILL"
   2-Letter Words (9 found)
   3-Letter Words (11 found)
   4-Letter Words (11 found)
   7-Letter Words (1 found)