maths vs correspondence

maths and correspondence both are nouns.

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

maths (noun)	correspondence (noun)
a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement	similarity by virtue of corresponding
	compatibility of observations
	(mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane
	communication by the exchange of letters
	the relation of corresponding in degree or size or amount