1o_ As an adjective it is "something, usually edible, which was put to heat to dry and brown on its outer layer". It is also a "brownish color", like the one that takes what you put on the fire. 2o_ As a noun it is usually applied to a food that is served after roasting it; in Buenos Aires, for example, a 'toasted' is a "crumb bread sandwich with ham and cheese heated to dorarlo". See toast ( noun ) . 3o_ Past participle of the verb tostar .