register

a cashbox with an adding machine to register transactions; used in shops to add up the bill

a regulator (as a sliding plate) for regulating the flow of air into a furnace or other heating device

an air passage (usually in the floor or a wall of a room) for admitting or excluding heated air from the room

(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

(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

enter into someone's consciousness

“Did this event register in your parents' minds?”

indicate a certain reading; of gauges and instruments

“The thermometer showed thirteen degrees below zero”

record in a public office or in a court of law

“file for divorce”

send by registered mail

“I'd like to register this letter”

manipulate the registers of an organ

be aware of

“Did you register any change when I pressed the button?”

show in one's face

“Her surprise did not register”

enroll to vote

“register for an election”

record in writing; enter into a book of names or events or transactions

have one's name listed as a candidate for several parties