carving knife vs knife

carving knife and knife both are nouns.

Word	Noun	Adjective	Verb	Adverb
carving knife	Yes	No	No	No
knife	Yes	No	Yes	No

As nouns, knife is a hypernym of carving knife; that is, knife is a word with a broader meaning than carving knife:

carving knife: a large knife used to carve cooked meat
knife: edge tool used as a cutting instrument; has a pointed blade with a sharp edge and a handle

carving knife (noun)	knife (noun)
a large knife used to carve cooked meat	edge tool used as a cutting instrument; has a pointed blade with a sharp edge and a handle
	a weapon with a handle and blade with a sharp point
	any long thin projection that is transient

carving knife (verb)	knife (verb)
	use a knife on