fuss vs bicker

fuss and bicker both are nouns.

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

As nouns, fuss and bicker are synonyms defined as:

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

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

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