birthday

[ burth-dey ]

noun

1. the anniversary of a birth.
2. the day of a person's birth.
3. a day marking or commemorating the origin, founding, or beginning of something.
4. the festivities or celebration marking such a day or anniversary.

birthday

/ ˈbɜːθˌdeɪ /

noun

1. 1. an anniversary of the day of one's birth
   2. ( as modifier )

      birthday present

2. the day on which a person was born
3. any anniversary

Word History and Origins

Origin of birthday¹

Middle English word dating back to 1350–1400; birth, day

Example Sentences

That day also marked Raducanu's 22nd birthday.

From BBC

In June he was knighted in the King’s Birthday Honours.

From BBC

She and her husband Sam are now celebrating Aurora's first birthday together, and the couple are incredibly relieved that Laura has been declared cancer free.

From BBC

King Charles III is to mark his 76th birthday by opening two hubs that will distribute large volumes of surplus food to food banks, schools and community centres.

From BBC

The King is treating his birthday as a working day, visiting a new food hub in south London and conducting a virtual opening ceremony for another, on Merseyside.

From BBC