nest vs nester

nest and nester both are nouns.

Word	Noun	Adjective	Verb	Adverb
nest	Yes	No	Yes	No
nester	Yes	No	No	No

nest (noun)	nester (noun)
a kind of gun emplacement	a bird that has built (or is building) a nest
furniture pieces made to fit close together	someone who settles lawfully on government land with the intent to acquire title to it
a gang of people (criminals or spies or terrorists) assembled in one locality
a cosy or secluded retreat
a structure in which animals lay eggs or give birth to their young

nest (verb)	nester (verb)
fit together or fit inside
gather nests
move or arrange oneself in a comfortable and cozy position
inhabit a nest, usually after building