What is the meaning of óleo?

fine flour (finest portion of ground grain, as in French fleur de farine)

chrism

oil, as a medium for painting

oil in general

oil (liquid substance extracted from animals, vegetals, or minerals)

olive oil

oil-based paint

oil painting

essential oil

oil (liquid fat)

oil painting (a painting done with oil paints)

oil painting (the art of painting with oil paints)

Source: wiktionary.org