A screen that shows information from a computer or other device.
You can see the text clearly on the computer monitor.
A device that checks or records something.
The heart monitor shows your heartbeat.
A person who watches to make sure things are fair and honest.
The monitor watched to ensure the election was fair.
A student who helps the teacher with special duties.
As class monitor, she helps the teacher.
A large tropical lizard.
We saw a monitor lizard in the zoo.
To watch and check something over time to see how it changes.
Doctors monitor the patient's health.
To use technology to watch someone or something for safety.
Cameras monitor the building for security.
To listen to radio or phone calls to get information.
They monitor radio signals for news.