imp vs child

imp and child both are nouns.

Word	Noun	Adjective	Verb	Adverb
imp	Yes	No	No	No
child	Yes	No	No	No

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

Other hypernyms of imp include fry, kid, minor, nestling, nipper, shaver, small fry, tiddler, tike, tyke, youngster.

imp (noun)	child (noun)
one who is playfully mischievous	a young person of either sex
(folklore) fairies that are somewhat mischievous	a human offspring (son or daughter) of any age
	an immature childish person
	a member of a clan or tribe