Catch on to an idea

Translation of "catch on to an idea" into Russian

понять идею

It took him a while to catch on to the idea, but now he fully supports it.

Ему понадобилось немного времени, чтобы понять идею, но теперь он ее полностью поддерживает.

To begin to understand or grasp a concept or idea, often after some initial confusion or explanation.