bicker vs fuss

bicker and fuss both are nouns.

Word	Noun	Adjective	Verb	Adverb
bicker	Yes	No	Yes	No
fuss	Yes	No	Yes	No

As nouns, bicker and fuss are synonyms defined as:

Other synonyms of bicker include bickering, pettifoggery, spat, squabble, tiff.

bicker (noun)	fuss (noun)
a quarrel about petty points	a rapid active commotion
	a quarrel about petty points
	an angry disturbance
	an excited state of agitation

bicker (verb)	fuss (verb)
argue over petty things	worry unnecessarily or excessively
	care for like a mother