expression vs mathematics

expression and mathematics both are nouns.

Word	Noun	Adjective	Verb	Adverb
expression	Yes	No	No	No
mathematics	Yes	No	No	No

expression (noun)	mathematics (noun)
the act of forcing something out by squeezing or pressing	a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
the feelings expressed on a person's face
a word or phrase that particular people use in particular situations
the style of expressing yourself
expression without words
a group of symbols that make a mathematical statement
the communication (in speech or writing) of your beliefs or opinions
a group of words that form a constituent of a sentence and are considered as a single unit
(genetics) the process of expressing a gene