knife vs yataghan

knife and yataghan both are nouns.

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

As nouns, yataghan is a hyponym of knife; that is, yataghan is a word with a more specific, narrower meaning than knife:

Other hyponyms of knife include bayonet, dagger, sticker, khukuri, machete, matchet, panga, shiv, trench knife, kindjal, seax.

knife (noun)	yataghan (noun)
edge tool used as a cutting instrument; has a pointed blade with a sharp edge and a handle	a long Turkish knife with a curved blade having a single edge
a weapon with a handle and blade with a sharp point
any long thin projection that is transient

knife (verb)	yataghan (verb)
use a knife on