enter vs entrance

enter is not a noun while entrance is a noun.

Word	Noun	Adjective	Verb	Adverb
enter	No	No	Yes	No
entrance	Yes	No	Yes	No

enter (noun)	entrance (noun)
	the act of entering
	something that provides access (to get in or get out)
	a movement into or inward

enter (verb)	entrance (verb)
set out on (an enterprise or subject of study)	put into a trance
make a record of; set down in permanent form	attract; cause to be enamored
become a participant; be involved in
put or introduce into something
come on stage
to come or go into
take on duties or office
register formally as a participant or member
be or play a part of or in