Definition of prayer

a devout petition to God or an object of worship. a spiritual communion with God or an object of worship, as in supplication, thanksgiving, adoration, or confession. the act or practice of praying to God or an object of worship. a formula or sequence of words used in or appointed for praying:the Lord's Prayer. prayers, a religious observance, either public or private, consisting wholly or mainly of prayer. that which is prayed for.