injure vs wrench

injure is not a noun while wrench is a noun.

Word	Noun	Adjective	Verb	Adverb
injure	No	No	Yes	No
wrench	Yes	No	Yes	No

As verbs, wrench is a hyponym of injure; that is, wrench is a word with a more specific, narrower meaning than injure:

injure (noun)	wrench (noun)
	a hand tool that is used to hold or twist a nut or bolt
	a jerky pulling movement
	a sharp strain on muscles or ligaments

injure (verb)	wrench (verb)
cause injuries or bodily harm to	twist suddenly so as to sprain
cause damage or affect negatively	twist or pull violently or suddenly, especially so as to remove (something) from that to which it is attached or from where it originates
hurt the feelings of	twist and compress, as if in pain or anguish
	make a sudden twisting motion