squabble vs quarrel

squabble and quarrel both are nouns.

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

As nouns, quarrel is a hypernym of squabble; that is, quarrel is a word with a broader meaning than squabble:

Other hypernyms of squabble include dustup, row, run-in, words, wrangle.

squabble (noun)	quarrel (noun)
a quarrel about petty points	an arrow that is shot from a crossbow; has a head with four edges
	an angry dispute

squabble (verb)	quarrel (verb)
argue over petty things	have a disagreement over something