procreation vs sexual practice

procreation and sexual practice both are nouns.

Word	Noun	Adjective	Verb	Adverb
procreation	Yes	No	No	No
sexual practice	Yes	No	No	No

As nouns, sexual practice is a hypernym of procreation; that is, sexual practice is a word with a broader meaning than procreation:

Other hypernyms of procreation include sex, sex activity, sexual activity.

procreation (noun)	sexual practice (noun)
the sexual activity of conceiving and bearing offspring	activities associated with sexual intercourse