The word for “painting” in Italian, as in the ACT of painting, is pittura, whereas a painting as a piece of art is dipinto or quadro or lavoro di pittura (a work of art). A person who paints, a painter, is pittore (masculine) or pittrice (feminine). On the other hand, if you’re talking about a house painter or someone who whitewashes walls, etc., the word is imbianchino.