arrival; onset; a time when something first comes or appears

(Christianity) The first or the expected second coming of Christ. / (Christianity) The period or season of the Christian church year between Advent Sunday and Christmas.

plural of advent

Accidental. / Adventitious. / (biology) Of a plant that is not native, but was introduced by humans to a place and has since become naturalized.

A non-native plant that has become naturalized.

plural of adventive

The Adventist Christian movement founded by William Miller in 19th-century United States. / Any of several related movements.

The fourth Sunday before Christmas Day, the start of Advent: 30 November (Saint Andrew's Day) or the nearest Sunday to it.

A calendar used to count down the days of Advent, having windows revealing a hidden picture or gift on each day.

plural of Advent calendar