noun
monitor
A screen that displays computer or video output.
She connects a second monitor to her laptop for work.
Etymology
The older word names someone or something that observes or warns. The screen is a monitor because it allows the user to watch the output or state of a system.
More examples
- The security guard watches the camera feed on a monitor.
- I lower the monitor's brightness to reduce glare.
- Two monitors let him view the spreadsheet and report side by side.
Forms
monitor · monitors