Learner's definition of PAINTING
1 [count] : a picture that is painted : a picture made by putting paint on a canvas, board, etc.
They hung the painting in the living room.
The woman in that painting is my grandmother.
We went to see ancient cave paintings [=pictures painted on the wall of a cave] in Spain.
2 [noncount] : the art or act of making pictures using paint
I like painting more than sculpture.
He is studying abstract/Chinese/watercolor painting.
She wants to devote all her time to painting.
3 [noncount] : the activity of painting houses, walls, etc.