miscegenation vs facts of life

miscegenation and facts of life both are nouns.

Word	Noun	Adjective	Verb	Adverb
miscegenation	Yes	No	No	No
facts of life	Yes	No	No	No

As nouns, facts of life is a hypernym of miscegenation; that is, facts of life is a word with a broader meaning than miscegenation:

miscegenation: reproduction by parents of different races (especially by white and non-white persons)
facts of life: the sexual activity of conceiving and bearing offspring

Other hypernyms of miscegenation include breeding, procreation, reproduction.

miscegenation (noun)	facts of life (noun)
reproduction by parents of different races (especially by white and non-white persons)	the sexual activity of conceiving and bearing offspring