knife thrust vs stab

knife thrust and stab both are nouns.

Word	Noun	Adjective	Verb	Adverb
knife thrust	Yes	No	No	No
stab	Yes	No	Yes	No

As nouns, knife thrust and stab are synonyms defined as:

knife thrust and stab: a strong blow with a knife or other sharp pointed instrument

Other synonyms of knife thrust include thrust.

knife thrust (noun)	stab (noun)
a strong blow with a knife or other sharp pointed instrument	a strong blow with a knife or other sharp pointed instrument
	informal words for any attempt or effort
	a sudden sharp feeling