detriment vs harm

detriment and harm both are nouns.

Word	Noun	Adjective	Verb	Adverb
detriment	Yes	No	No	No
harm	Yes	No	Yes	No

As nouns, harm is a hypernym of detriment; that is, harm is a word with a broader meaning than detriment:

Other hypernyms of detriment include damage, impairment.

detriment (noun)	harm (noun)
a damage or loss	the act of damaging something or someone
	the occurrence of a change for the worse
	any physical damage to the body caused by violence or accident or fracture etc.; the condition of an injury

detriment (verb)	harm (verb)
	cause or do harm to