The act or a period of observing; surveillance. (noun)
The eve of a religious festival observed by staying awake as a devotional exercise. (noun)
Ritual devotions observed on the eve of a holy day. Often used in the plural. (noun)
Examples of word vigil
The reform of Pope Pius XII did not in fact restore the Easter vigil to its proper historical time after None, since it mandated that the vigil is to start at such an hour that the actual Mass will begin around midnight.
As noted in the article on the Mass of Holy Saturday, the Easter vigil, is not a first Mass of the Resurrection; it is a vigil, a keeping watch.
The proper hour for the celebration of the Easter vigil is also traditionally after None, as in all the ferial days of Lent.
(The centrality of this reading to the Easter vigil is emphasized by a rubric of the Missal of 1970, which specifies that it may never be omitted.) 5.
A vigil is planned in his memory for Saturday, she said.