ecology vs establishment

ecology and establishment both are nouns.

Word	Noun	Adjective	Verb	Adverb
ecology	Yes	No	No	No
establishment	Yes	No	No	No

ecology (noun)	establishment (noun)
the branch of biology concerned with the relations between organisms and their environment	the act of forming or establishing something
the environment as it relates to living organisms	a public or private structure (business or governmental or educational) including buildings and equipment for business or residence
	the cognitive process of establishing a valid proof
	an organization founded and united for a specific purpose
	any large organization
	the persons (or committees or departments etc.) who make up a body for the purpose of administering something
	(ecology) the process by which a plant or animal becomes established in a new habitat