equator vs equate

equator is a noun but equate is not a noun.

Word	Noun	Adjective	Verb	Adverb
equator	Yes	No	No	No
equate	No	No	Yes	No

equator (noun)	equate (noun)
an imaginary line around the Earth forming the great circle that is equidistant from the north and south poles
a circle dividing a sphere or other surface into two usually equal and symmetrical parts

equator (verb)	equate (verb)
	make equal, uniform, corresponding, or matching
	consider or describe as similar, equal, or analogous
	be equivalent or parallel, in mathematics