From Late Latin metonymia, from Ancient Greek μετονομασία (metonomasía, “change of name”), from μετά (metá, “other”) + ὄνομα (ónoma, “name”).
metonymy (countable and uncountable, plural metonymies)
- The use of a single characteristic or name of an object to identify an entire object or related object.
- (countable) A metonym.
- The White House released its official report today. — "The White House" for "The presidential administration"
- The Crown has enacted a new social security policy. —"The Crown" for "The government of the United Kingdom".
- A crowd of fifty heads —where "head" stands for person.
- Put it on the plastic — material (plastic) for object (credit card)