flit vs zip

flit and zip both are nouns.

Word	Noun	Adjective	Verb	Adverb
flit	Yes	No	Yes	No
zip	Yes	No	Yes	No

As verbs, zip is a hypernym of flit; that is, zip is a word with a broader meaning than flit:

Other hypernyms of flit include hurry, speed, travel rapidly.

flit (noun)	zip (noun)
a sudden quick movement	a fastener for locking together two toothed edges by means of a sliding tab
a secret move (to avoid paying debts)	forceful exertion
	a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential

flit (verb)	zip (verb)
move along rapidly and lightly; skim or dart	close with a zipper
	move very fast