breakdown vs chemistry

breakdown and chemistry both are nouns.

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

breakdown (noun)	chemistry (noun)
the act of disrupting an established order so it fails to continue	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
an analysis into mutually exclusive categories	the way two individuals relate to each other
a cessation of normal operation	the chemical composition and properties of a substance or object
(biology) the process of decay caused by bacterial or fungal action
(chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance
a mental or physical breakdown