Whit Sunday
noun
- the seventh Sunday after Easter, a Christian festival commemorating the descent of the Holy Spirit at Pentecost (Acts 2).圣灵降临节（复活节后的第七个星期天, 基督教庆祝圣灵降临的节日）。亦称PENTECOST.
词源
late Old English Hwīta Sunnandǣg, literally 'white Sunday'， probably with reference to the white robes of those newly baptized at Pentecost.