wound vs abrasion

wound and abrasion both are nouns.

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

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

wound: an injury to living tissue (especially an injury involving a cut or break in the skin)
abrasion: an abraded area where the skin is torn or worn off

Other hyponyms of wound include raw wound, stigmata, excoriation, scrape, scratch, cut, gash, slash, slice, laceration, bite.

wound (noun)	abrasion (noun)
the act of inflicting a wound	the wearing down of rock particles by friction due to water or wind or ice
a casualty to military personnel resulting from combat	erosion by friction
a figurative injury (to your feelings or pride)	an abraded area where the skin is torn or worn off
an injury to living tissue (especially an injury involving a cut or break in the skin)

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

wound (verb)	abrasion (verb)
cause injuries or bodily harm to
hurt the feelings of