quarrel vs fracas

quarrel and fracas both are nouns.

Word	Noun	Adjective	Verb	Adverb
quarrel	Yes	No	Yes	No
fracas	Yes	No	No	No

As nouns, fracas is a hyponym of quarrel; that is, fracas is a word with a more specific, narrower meaning than quarrel:

Other hyponyms of quarrel include affray, altercation, bicker, bickering, fuss, pettifoggery, spat, squabble, tiff, bust-up.

quarrel (noun)	fracas (noun)
an arrow that is shot from a crossbow; has a head with four edges	noisy quarrel
an angry dispute

quarrel (verb)	fracas (verb)
have a disagreement over something