nookie vs copulation

nookie and copulation both are nouns.

Word	Noun	Adjective	Verb	Adverb
nookie	Yes	No	No	No
copulation	Yes	No	No	No

As nouns, copulation is a hypernym of nookie; that is, copulation is a word with a broader meaning than nookie:

nookie: slang for sexual intercourse
copulation: sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur

nookie (noun)	copulation (noun)
slang for sexual intercourse	sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur