What is metonymy? (english)

It is a figure of speech that consists of the use of the name of one thing for another.

Explanation:

The word metonymy comes from the Greek metonymia, which means change of name. It is a figure of speech in which a thing or concept is referred by the name of something closely associated.

the substitution of the name of an attribute or adjunct for that of the thing meant, for example suit for business executive, or the track for horse racing.