radar
nounUK /ˈreɪ.dɑːr/
US /ˈreɪ.dɑːr/
A machine that uses radio waves to find where things are, like planes or ships.
The pilot used radar to see the storm ahead.
RELATED WORDS
OTHER MEANINGS
2. A way of finding out about something by watching or listening carefully.
The teacher keeps radar on who is talking during class.
3. A system that shows the position and speed of objects by bouncing radio waves off them.
Air traffic control relies on radar to guide planes safely.
4. A person's ability to notice or be aware of things happening around them.
She has good radar for when someone is upset.