osculate vs maths

osculate is not a noun while maths is a noun.

Word	Noun	Adjective	Verb	Adverb
osculate	No	No	Yes	No
maths	Yes	No	No	No

osculate (noun)	maths (noun)
	a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement

osculate (verb)	maths (verb)
touch with the lips or press the lips (against someone's mouth or other body part) as an expression of love, greeting, etc.
have at least three points in common with
be intermediate between two taxonomic groups