actus reus vs injury

actus reus and injury both are nouns.

Word	Noun	Adjective	Verb	Adverb
actus reus	Yes	No	No	No
injury	Yes	No	No	No

As nouns, injury is a hyponym of actus reus; that is, injury is a word with a more specific, narrower meaning than actus reus:

actus reus (noun)	injury (noun)
activity that transgresses moral or civil law	wrongdoing that violates another's rights and is unjustly inflicted
	an act that causes someone or something to receive physical damage
	an accident that results in physical damage or hurt
	a casualty to military personnel resulting from combat
	any physical damage to the body caused by violence or accident or fracture etc.; the condition of an injury