This is the 12734th most frequent Russian word.
красил
"Красил" means "painted" or "was painting" in English.
The word 'красил' refers here to the act of painting or applying color to the surface of the fence.
Вчера он красил забор, чтобы обновить его.
Yesterday, he painted the fence to refresh it.
In this case, 'красил' is used to describe the action of creating a painting, implying an artistic activity.
Я красил картину на выходных.
I was painting a picture over the weekend.
Here, 'красил' denotes the application of paint to make a change in the color of the walls.