Breadcrumb Home > Thesaurus > B Synonyms of birthday Find synonyms for: Noun 1. birthday, anniversary, day of remembrance usage: an anniversary of the day on which a person was born (or the celebration of it) 2. birthday, natal day, date, day of the month usage: the date on which a person was born WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of birthday (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: atavistic Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language