Device and Throwing board

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

Throwing board and device are semantically related. In some cases you can replace phrase "Throwing board" with "Device", this terms are similar.

Throwing board noun - A device resembling a sling that is used in various primitive societies to propel a dart or spear.

Device and throwing board are semantically related. You can use "Device" instead a noun phrase "Throwing board".