flap vs fuss

flap and fuss both are nouns.

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

As nouns, flap and fuss are synonyms defined as:

Other synonyms of flap include dither, pother, tizzy.

As verbs, fuss is a hypernym of flap; that is, fuss is a word with a broader meaning than flap:

Other hypernyms of flap include fret, niggle.

flap (noun)	fuss (noun)
any broad thin and limber covering attached at one edge; hangs loose or projects freely	a rapid active commotion
a movable airfoil that is part of an aircraft wing; used to increase lift or drag	a quarrel about petty points
a movable piece of tissue partly connected to the body	an angry disturbance
the motion made by flapping up and down	an excited state of agitation
an excited state of agitation

flap (verb)	fuss (verb)
pronounce with a flap, of alveolar sounds	worry unnecessarily or excessively
make a fuss; be agitated	care for like a mother
to flutter noisily when moved by the wind
move in a wavy pattern or with a rising and falling motion
move with a flapping motion
move with a thrashing motion