Home › Words › W › whitsunwhitsun/ˈwɪt.sən/whitsun means of, or relating to Whitsunday or Whitsuntide.whitsun is pronounced /ˈwɪt.sən/.EtymologyApocopic form of Whitsunday.adjOf, or relating to Whitsunday or WhitsuntidenounWhitsunday.The holiday beginning on Whitsunday.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.whit 89% match — The smallest part or particle imaginable; an iota. vs whitsun →whitsuntide 83% match — The week that begins with Whitsunday. vs whitsun →whitsunday 80% match — The Sunday on which the feast or festival of Pentecost falls, seven weeks after Easter. vs whitsun →eastertide 64% match — The season from Easter Day to Whitsun, inclusive thereof. vs whitsun →ascensiontide 61% match — The period from Ascension Day (39 days after Easter) until Whitsunday (49 days after Easter). vs whitsun →quasimodo 55% match — The first Sunday after Easter Sunday. vs whitsun →washday 55% match — A day when laundry is washed. vs whitsun →quindene 54% match — The 14th day after a festival. vs whitsun →