biology vs multiply

biology is a noun but multiply is not a noun.

Word	Noun	Adjective	Verb	Adverb
biology	Yes	No	No	No
multiply	No	No	Yes	Yes

biology (noun)	multiply (noun)
the science that studies living organisms
all the plant and animal life of a particular region
characteristic life processes and phenomena of living organisms

biology (verb)	multiply (verb)
	have young (animals) or reproduce (organisms)
	have offspring or produce more individuals of a given animal or plant
	combine or increase by multiplication
	make multiple copies of
	combine by multiplication

biology (adverb)	multiply (adverb)
	in several ways; in a multiple manner