Cuadro= painting with frame, as you may hang it on your romm. Pintura= painting itself, the contents of the -"cuadro", that's it; the image. Dibujo= an image made with pencil, graffitos, etc on any surface. The lines, the draft, anything. Example: you can do a "dibujo" on a paper of any item, then you may paint it and becomes "pintura" (with oils, etc and then you frame it..then you got the final product: the "cuadro".

Hola Yann, Cuadro: could mean a painting (pintura),they could be synonyms : Un cuadro de Miró -> a painting by Miró Dos cuadros de Velázquez -> two Velazquez’ paintings but it means also: - square (cuadrado) una camisa a cuadros -> a check shirt - scene, spectacle (escena) Después del terremoto, la ciudad presentaba un cuadro desolador After the earthquake, the city was a scene of devastation. - team (equipo) el cuadro directivo de una empresa -> the management of a company - chart, diagram (gráfico) cuadro sinóptico -> tree diagram - frame (de bicicleta) Pintura: ( synonym of cuadro) a painting una pintura renacentista -> Renaissance painting pintura a la acuarela -> watercolor pintura al fresco -> fresco pintura mural -> mural painting pintura al óleo -> oil painting pintura rupestre -> cave painting 'Pintura' means also paint ( materia liquida) or colored pencil (crayon). Dibujo: on the other hand means 'drawing' It refers to the technique and implementation of the work of art ( técnica, obra): dibujo a lápiz/al carboncillo -> pencil/charcoal drawing dibujo anatómico -> anatomical drawing dibujo lineal (education) -> = drawing of geometrical figures dibujo técnico -> technical drawing dibujos animados -> cartoons "Dibujo" means also a pattern ( en tela, prenda).