Definitions of prayer:

• noun:   the act of communicating with a deity (especially as a petition or in adoration or contrition or thanksgiving)

  Example: "The priest sank to his knees in prayer"

• noun:   a fixed text used in praying
• noun:   reverent petition to a deity
• noun:   someone who prays to God
• noun:   earnest or urgent request
• name:  A surname (very rare: popularity rank in the U.S.: #28471)