/ Dictionary / Index B birthnight: Meaning and Definition of Find definitions for: birth•night Pronunciation: (bûrth'nīt"), [key] — n. the night of a person's birth, esp. a birthday celebration for royalty. the anniversary of such a date. the celebration of a royal birthday. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. birth name Birth of a Nation, The 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