Device and Mod con

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

Mod con and device are semantically related. in gizmo topic. In some cases you can use "Mod con" instead a noun "Device". informal substitute

Mod con noun - Something that adds to one's ease of living.

Device and mod con are semantically related. Sometimes you can replace term "Device" with "Mod con", this terms are similar.