Ascension, Ascension_Day, Ascension_of_the_Lord: (Christianity) celebration of the Ascension of Christ into heaven; observed on the 40th day after Easter rise, rising, ascent, ascension: a movement upward; "they cheered the rise of the hot-air balloon" Ascension, Ascension_of_Christ: (New Testament) the rising of the body of Jesus into heaven on the 40th day after his Resurrection ascension: (astronomy) the rising of a star above the horizon rise, ascent, ascension, ascending: the act of changing location in an upward direction