monitor

/ˈmɑnɪtər/
verb
  1. To watch or check something regularly over a period of time.
    • The software monitors network traffic for suspicious activity.
    • Park rangers monitor the wildlife population in the forest.
    • Teachers monitor students' progress throughout the school year.
  2. To listen to or record communications, often for security or official purposes.
    • The radio station monitors emergency broadcasts during a storm.
    • Some companies monitor employee emails to ensure policy compliance.
    • The agency monitors phone calls for potential threats.
noun
  1. A screen that displays information from a computer or other electronic device.
    • I need a larger monitor for editing photos and videos.
    • She adjusted the brightness on her monitor to reduce eye strain.
    • The security guard watches several monitors showing different camera feeds.
  2. A person who watches or checks something regularly, especially in a school or official setting.
    • A UN monitor was sent to observe the election process.
    • The hall monitor asked students to walk quietly between classes.
    • The camp monitor made sure everyone was safely in their cabins by curfew.
  3. A device used for measuring or checking something, such as heart rate or air quality.
    • The baby monitor let the parents hear their child from the next room.
    • The doctor attached a heart monitor to the patient's chest.
    • An air quality monitor in the lab detects harmful gases.