Как по Английски будет rendre clair

verb

Make or become more light.

Примеры использования:

Most of the country should brighten up later

collocation

If the weather brightens up, it becomes lighter and less cloudy, with more sun

Примеры использования:

I hope the weather brightens up in time for our walk., it was rainy this morning, but it brightened…

verb

To free from obscurity; to make clear or apparent; to brighten or clear (the face, expression, etc.); to illuminate (the mind or understanding). also occasionally reflexive: to become clear.