This is the 11296th most frequent French word.
radar
A device used to detect and locate objects, such as aircraft or ships, by using radio waves.
In this context, 'radar' is used to describe a technological device utilized to monitor speed and ensure traffic regulations are followed.
Le radar détecte les véhicules trop rapides sur la route.
The radar detects vehicles that are speeding on the road.
Here, 'sous le radar' is an idiomatic expression meaning to avoid attention or maintain a low profile.
Elle est toujours sous le radar quand il s'agit de sa carrière artistique.
She is always under the radar when it comes to her artistic career.
Here, 'radar' refers to the specific field of technology that involves detecting and tracking objects using radio waves.