1. A reference to a machine, or system, that produces representations in relief, of coins, medals, etc.
2. The art of copying works in relief, or of engraving as to give the subject an embossed or raised appearance; used in representing coins, bas-reliefs, etc.

A bas-relief, or low relief, is a sculptural form in which figures are carved in a flat surface and project only slightly from the background rather than standing freely.

Depending on the degree of projection, reliefs may also be classified as either a high or a medium relief.