Difference between Altarpiece and Reredos

What is the difference between Altarpiece and Reredos?

Altarpiece as a noun is a work of art suspended above and behind an altar in a church while Reredos as a noun is a screen or decoration behind the altar in a church, usually depicting religious iconography or images.

We hope you now know whether to use Altarpiece or Reredos in your sentence.