Word.ws English Dictionary

bday

/ˈbiːdeɪ/

bday is the abbreviation of birthday.

Meaning of birthday

Noun

birthday (plural birthdays)

  1. The anniversary of the day on which someone is born.
    • When's your birthday? Mine's on April 1.
    Synonyms:
    natal day
  2. The anniversary of the day on which something is created.
  3. The date on which someone is born or something is created, more commonly called birthdate or date of birth.
  4. A birthday party.
    • I'd like to invite you all to my birthday.

See all 5 meanings of birthday

Forms of bday

pluralbdays
alternative formb-day
alternative formB-day
alternative form (rare)bdai

Words that rhyme with bday

Questions about bday

What is bday the abbreviation of?
Bday is the abbreviation of birthday.
How do you pronounce bday?
Bday is pronounced /ˈbiːdeɪ/.

Words near bday in the dictionary

  1. bd. ft.
  2. BDA
  3. BDAC
  4. bdai
  5. BDAs
  6. bday
  7. bdays
  8. BDB
  9. BDBV
  10. BDC
  11. BDCM

Source and license

Adapted from Wiktionary: bday (page history and authors); birthday (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-bday.wav.

Cite this entry: “bday.” Word.ws, https://word.ws/bday. Based on Wiktionary, CC BY-SA 4.0.