table knife vs knife

table knife and knife both are nouns.

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

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

table knife: a knife used for eating at dining table
knife: edge tool used as a cutting instrument; has a pointed blade with a sharp edge and a handle

Other hypernyms of table knife include cutlery, eating utensil.

table knife (noun)	knife (noun)
a knife used for eating at dining table	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

table knife (verb)	knife (verb)
	use a knife on