apposition vs biology

apposition and biology both are nouns.

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

apposition (noun)	biology (noun)
the act of positioning close together (or side by side)	the science that studies living organisms
(biology) growth in the thickness of a cell wall by the deposit of successive layers of material	all the plant and animal life of a particular region
a grammatical relation between a word and a noun phrase that follows	characteristic life processes and phenomena of living organisms