Device and Metonymy

Device noun - A clever often underhanded means to achieve an end.

Metonymy and device are semantically related In some cases you can use "Metonymy" instead a noun "Device".

Metonymy noun - Substituting the name of an attribute or feature for the name of the thing itself (as in `they counted heads').

Device and metonymy are semantically related in turn of expression topic. Sometimes you can use "Device" instead a noun "Metonymy".