flick knife vs switchblade knife

flick knife and switchblade knife both are nouns.

Word	Noun	Adjective	Verb	Adverb
flick knife	Yes	No	No	No
switchblade knife	Yes	No	No	No

As nouns, flick knife and switchblade knife are synonyms defined as:

flick knife and switchblade knife: a pocketknife with a blade that springs open at the press of a button

Other synonyms of flick knife include flick-knife, switchblade.

flick knife (noun)	switchblade knife (noun)
a pocketknife with a blade that springs open at the press of a button	a pocketknife with a blade that springs open at the press of a button