osculation vs sexual practice

osculation and sexual practice both are nouns.

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

osculation (noun)	sexual practice (noun)
the act of caressing with the lips (or an instance thereof)	activities associated with sexual intercourse
(mathematics) a contact of two curves (or two surfaces) at which they have a common tangent