Dictionary.net

earnest or urgent request; "an entreaty to stop the fighting"; "an appeal for help"; "an appeal to the public to keep calm"

reverent petition to a deity

earnest or urgent request; "an entreaty to stop the fighting"; "an appeal for help"; "an appeal to the public to keep calm"

reverent petition to a deity

One who prays; a supplicant.

The act of praying, or of asking a favor; earnest request or entreaty; hence, a petition or memorial addressed to a court or a legislative body.

The act of addressing supplication to a divinity, especially to the true God; the offering of adoration, confession, supplication, and thanksgiving to the Supreme Being; as, public prayer; secret prayer.

The form of words used in praying; a formula of supplication; an expressed petition; especially, a supplication addressed to God; as, a written or extemporaneous prayer; to repeat one's prayers.

A set of beliefs concerning the nature, cause, and purpose of the universe, especially when considered as the creation of a superhuman agency. It usually involves devotional and ritual observances and often a moral code for the conduct of human affairs. (Random House Collegiate Dictionary, rev. ed.)

Thanks and praise given to God, and requests made of him; a form of words suited to an appeal to God; a form of religious service for public worship.

The act of praying: entreaty: the words used: solemn address to God: a formula of worship.

Petition; supplication; reverent address to God.

The act of offering, especially reverent petitions to God; devotion.

A memorial or petition.

Prayerful.

Prayerless.