metonym, metonymy 1. An additional name or epithet. 2. A figure of speech that consists of substituting the name of a thing for something closely related. 3. A rhetorical or stylistic device in which one thing is named or referred to by the name of another related thing; for example. the use of 'White House' when referring to the presidential admi... Found on http://www.wordinfo.info/words/index/info/view_unit/2565/6