memory vs register

memory and register both are nouns.

Word	Noun	Adjective	Verb	Adverb
memory	Yes	No	No	No
register	Yes	No	Yes	No

memory (noun)	register (noun)
an electronic memory device	a regulator (as a sliding plate) for regulating the flow of air into a furnace or other heating device
the power of retaining and recalling past experience	an air passage (usually in the floor or a wall of a room) for admitting or excluding heated air from the room
the cognitive processes whereby past experience is remembered	a cashbox with an adding machine to register transactions; used in shops to add up the bill
something that is remembered	(computer science) memory device that is the part of computer memory that has a specific address and that is used to hold information of a specific kind
the area of cognitive psychology that studies memory processes	(music) the timbre that is characteristic of a certain range and manner of production of the human voice or of different pipe organ stops or of different musical instruments
	an official written record of names or events or transactions
	a book in which names and transactions are listed

memory (verb)	register (verb)
	enter into someone's consciousness
	indicate a certain reading; of gauges and instruments
	record in a public office or in a court of law
	send by registered mail
	manipulate the registers of an organ
	be aware of
	show in one's face
	record in writing; enter into a book of names or events or transactions
	enroll to vote
	have one's name listed as a candidate for several parties