maths vs osculate

maths is a noun but osculate is not a noun.

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

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

maths (verb)	osculate (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