lechery vs sexual practice

lechery and sexual practice both are nouns.

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

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

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

lechery (noun)	sexual practice (noun)
unrestrained indulgence in sexual activity	activities associated with sexual intercourse