sprain vs wound

sprain and wound both are nouns.

Word	Noun	Adjective	Verb	Adverb
sprain	Yes	No	Yes	No
wound	Yes	Yes	Yes	No

As verbs, wound is a hypernym of sprain; that is, wound is a word with a broader meaning than sprain:

Other hypernyms of sprain include injure.

sprain (noun)	wound (noun)
a painful injury to a joint caused by a sudden wrenching of its ligaments	the act of inflicting a wound
	a casualty to military personnel resulting from combat
	a figurative injury (to your feelings or pride)
	an injury to living tissue (especially an injury involving a cut or break in the skin)

sprain (adjective)	wound (adjective)
	put in a coil

sprain (verb)	wound (verb)
twist suddenly so as to sprain	cause injuries or bodily harm to
	hurt the feelings of