monkey vs kid

monkey and kid both are nouns.

Word	Noun	Adjective	Verb	Adverb
monkey	Yes	No	Yes	No
kid	Yes	No	Yes	No

As nouns, kid is a hypernym of monkey; that is, kid is a word with a broader meaning than monkey:

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

monkey (noun)	kid (noun)
any of various long-tailed primates (excluding the prosimians)	young goat
one who is playfully mischievous	a young person of either sex
	a human offspring (son or daughter) of any age
	soft smooth leather from the hide of a young goat

monkey (verb)	kid (verb)
do random, unplanned work or activities or spend time idly	be silly or tease one another
play around with or alter or falsify, usually secretively or dishonestly	tell false information to for fun