Q. 1. What is the meaning of the letters XP? They are often seen one over the other. These letters are seen in the host of the celebrant, on ornaments, banners, etc..
A. 1. The letters XP, one over the other, is a Greek symbol. The X means Ch in Greek; the P means R in Greek. When you put the Ch + R together, you have CHR, the first three letters of Christ.
To answer your question, CHR is the abbreviation of the name of Christ.