/ Dictionary / Index W Whitsun: Meaning and Definition of Find definitions for: Whit•sun Pronunciation: (hwit'sun, wit'-), [key] — adj. of or pertaining to Whitsunday or Whitsuntide. —n. Whitsunday or Whitsuntide. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: whitsun (Thesaurus) whitrack Whitsunday Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language