It is a transfer of the meaning on the basis of contiguity. There are different types of metonymy:
a) the material of which an object is made may become the name of the object: a glass, boards;
b) the name of the place may become the name of the people or of an object placed there: the House – members of Parliement, the White House – the Administration of the USA;
c) names of musical instruments may become names of musicians when they are united in an orchestra: the violin, the saxophone;
