rarefy vs chemistry

rarefy is not a noun while chemistry is a noun.

Word	Noun	Adjective	Verb	Adverb
rarefy	No	No	Yes	No
chemistry	Yes	No	No	No

rarefy (noun)	chemistry (noun)
	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
	the way two individuals relate to each other
	the chemical composition and properties of a substance or object

rarefy (verb)	chemistry (verb)
weaken the consistency of (a chemical substance)
make more subtle or refined
lessen the density or solidity of