brawl vs combat

brawl and combat both are nouns.

Word	Noun	Adjective	Verb	Adverb
brawl	Yes	No	Yes	No
combat	Yes	No	Yes	No

As nouns, combat is a hypernym of brawl; that is, combat is a word with a broader meaning than brawl:

Other hypernyms of brawl include fight, fighting, scrap.

brawl (noun)	combat (noun)
a noisy fight in a crowd	an engagement fought between two military forces
an uproarious party	the act of fighting; any contest or struggle

brawl (verb)	combat (verb)
to quarrel noisily, angrily or disruptively	battle or contend against in or as if in a battle