The noun register has 7 senses (first 2 from tagged texts)
1. (2) register, registry -- (an official written record of names or events or transactions)
2. (1) register -- ((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)
3. register -- (a book in which names and transactions are listed)
4. register -- ((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)
5. register -- (an air passage (usually in the floor or a wall of a room) for admitting or excluding heated air from the room)
6. register -- (a regulator (as a sliding plate) for regulating the flow of air into a furnace or other heating device)
7. cash register, register -- (a cashbox with an adding machine to register transactions; used in shops to add up the bill)
Overview of verb register
The verb register has 10 senses (first 6 from tagged texts)
1. (7) register -- (record in writing; enter into a book of names or events or transactions)
2. (6) file, register -- (record in a public office or in a court of law; "file for divorce"; "file a complaint")
3. (4) register -- (enroll to vote; "register for an election")
4. (3) record, register -- (be aware of; "Did you register any change when I pressed the button?")
5. (2) read, register, show, record -- (indicate a certain reading; of gauges and instruments; "The thermometer showed thirteen degrees below zero"; "The gauge read `empty'")
6. (1) cross-file, register -- (have one's name listed as a candidate for several parties)
7. register -- (show in one's face; "Her surprise did not register")
8. register -- (manipulate the registers of an organ)
9. register -- (send by registered mail; "I'd like to register this letter")
10. register -- (enter into someone's consciousness; "Did this event register in your parents' minds?")