child neglect vs abuse

child neglect and abuse both are nouns.

Word	Noun	Adjective	Verb	Adverb
child neglect	Yes	No	No	No
abuse	Yes	No	Yes	No

As nouns, abuse is a hypernym of child neglect; that is, abuse is a word with a broader meaning than child neglect:

child neglect: failure of caretakers to provide adequate emotional and physical care for a child
abuse: cruel or inhumane treatment

Other hypernyms of child neglect include ill-treatment, ill-usage, maltreatment.

child neglect (noun)	abuse (noun)
failure of caretakers to provide adequate emotional and physical care for a child	improper or excessive use
	cruel or inhumane treatment
	a rude expression intended to offend or hurt

child neglect (verb)	abuse (verb)
	change the inherent purpose or function of something
	use wrongly or improperly or excessively
	use foul or abusive language towards
	treat badly