[Ad.vent] n [ME, fr. ML adventus, fr. L, arrival, fr. advenire] (12c) 1: the period beginning four Sundays before Christmas and observed by some Christians as a season of prayer and fasting
2. a: the coming of Christ at the Incarnation b: second coming 3 not cap: a coming into being or use "the ~ of spring" "the ~ of pasteurization" "the ~ of personal computers"