What is the meaning of register?

noun

• An official written record of names or events or transactions.
  • synonyms: registry
• 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. (
• A book in which names and transactions are listed.
• 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)
• An air passage (usually in the floor or a wall of a room) for admitting or excluding heated air from the room.
• A regulator (as a sliding plate) for regulating the flow of air into a furnace or other heating device.
• A cashbox with an adding machine to register transactions; used in shops to add up the bill.
  • synonyms: cash register

verb

• Record in writing; enter into a book of names or events or transactions.
• Record in a public office or in a court of law.
  • usage: "file for divorce"; "file a complaint"
  • synonyms: file
• Enroll to vote.
  • usage: "register for an election"
• Be aware of.
  • usage: "Did you register any change when I pressed the button"
  • synonyms: record
• Indicate a certain reading; of gauges and instruments.
  • usage: "The thermometer showed thirteen degrees below zero"; "The gauge read `empty'"
  • synonyms: read, show, record
• Have one's name listed as a candidate for several parties.
  • synonyms: cross-file
• Show in one's face.
  • usage: "Her surprise did not register"
• Manipulate the registers of an organ.
• Send by registered mail.
  • usage: "I'd like to register this letter"
• Enter into someone's consciousness.
  • usage: "Did this event register in your parents' minds"