Plural of birthday

regular plural

The plural of birthday is birthdays.

Forms of birthday

Cinderella Cookies and Milk-Tini is a cute treat for kids' birthdays and Cinderella themed parties!2015 February 23, Rachel Hollis, “Cinderella Milk-Tini”, in MsRachelHollis.com, archived from the original on 18 Jun 2025. From the entry milktini
“Remember that gay unsub in Santa Monica who killed boys on their twenty-first birthdays?2011, Stephen J. Cannell, Vigilante. From the entry put a pin in
We celebrated birthdays by putting out choco-pie and shrimp crackers and applauding.2005, Park Min-Na, translated by Sarah Eunkyung Chee, Birth of Resistance, page 118. From the entry choco pie
Birthdays are wonderful occasions to thank God for the gift of life.1995, Carl C. Fickenscher, Faith Alive Student Bible, page 1470. From the entry rebirthday
It goes beyond remembering birthdays or coordinating social plans.2025 June 20, Ashley Fike, “Mankeeping Is Why Women Are Done With Dating”, in VICE, archived from the original on 08 Sep 2025. From the entry heterosexual

noun The anniversary of the day on which someone is born.
noun The anniversary of the day on which something is created.
noun The date on which someone is born or something is created, more commonly called birthdate or date of birth.

What is the plural of birthday?: The plural of birthday is birthdays.
Is birthday countable?: Birthday is a countable noun.

Adapted from Wiktionary: birthday (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Cite this page: “Plural of birthday.” Word.ws, https://word.ws/plural/birthday. Based on Wiktionary, CC BY-SA 4.0.