metonymy
noun[Gr. over, beyond, and name.]
In rhetoric, a trope in which one word is put for another; a change of names which have some relation to each other; as when we say, “a man keeps a good table.” instead of good provisions. “We read Virgil.” that is, his poems or writings. “They have Moses and the prophets,” that is, their books or writings. A man has a clear head, that is, understanding, intellect; a warm heart, that is affections.