What is the crossword answer for the clue: Fight stopper

REF - a 3 letter word may be the answer you are looking for!

TKO - a 3 letter word may be the answer you are looking for!

KAYO - a 4 letter word may be the answer you are looking for!

TRUCE - a 5 letter word may be the answer you are looking for!

APOLOGY - a 7 letter word may be the answer you are looking for!

Fight stopper

3 Character Answers:

REF

TKO

4 Character Answers:

KAYO

5 Character Answers:

TRUCE

7 Character Answers:

APOLOGY