prayer

(noun) the act of communicating with a deity (especially as a petition or in adoration or contrition or thanksgiving). Synonyms: supplication. Example: "The priest sank to his knees in prayer."

(noun) reverent petition to a deity. Synonyms: petition, orison.

(noun) earnest or urgent request. Synonyms: entreaty, appeal. Examples: "An entreaty to stop the fighting." "An appeal for help." "An appeal to the public to keep calm."

(noun) a fixed text used in praying.

(noun) someone who prays to God. Synonyms: supplicant.