(countable, religion) An act of religious worship.
(uncountable) Admiration or esteem.
(uncountable) The act of adoring; loving devotion or fascination.
(historical) The selection of a pope by acclamation and before any formal ballot (excluded as a voting method in 1621 by Pope Gregory XV).
(Christianity) Worship of Christ in the Eucharistic host in the Catholic Church, often while exposed in a monstrance.