enter vs plug

enter is not a noun while plug is a noun.

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

enter (noun)	plug (noun)
	an old or over-worked horse
	blockage consisting of an object designed to fill a hole tightly
	an upright hydrant for drawing water to use in fighting a fire
	electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
	an electrical device with two or three pins that is inserted in a socket to make an electrical connection
	blatant or sensational promotion
	a wad of something chewable as tobacco

enter (verb)	plug (verb)
set out on (an enterprise or subject of study)	persist in working hard
make a record of; set down in permanent form	insert as a plug
become a participant; be involved in	insert a plug into
put or introduce into something	replace the center of a coin with a baser metal
come on stage	make a plug for; praise the qualities or in order to sell or promote
to come or go into	deliver a quick blow to
take on duties or office	fill or close tightly with or as if with a plug
register formally as a participant or member
be or play a part of or in