birthday

Meanings

1. 1
   noun

   The anniversary of the day on which someone is born.

   When's your birthday? Mine's on April 1.

2. 2
   noun

   A birthday party.

   I'd like to invite you all to my birthday.

3. 3
   noun

   an anniversary of the day on which a person was born (or the celebration of it)

4. 4
   noun

   the date on which a person was born

5. 5
   noun

   The anniversary of the day on which something is created.

6. 6
   noun

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

7. 7
   verb

   To celebrate one's birthday.

Etymology

From Middle English birthdai, birtheday, from Old English ġebyrddæġ (“birthday”), influenced by Old Norse burðr, equivalent to birth + day. Compare Saterland Frisian Gebuursdai (“birthday”), Dutch geboortedag (“birthday”), Low German Geboortsdag (“birthday”), German Geburtstag (“birthday”), Norwegian bursdag, gebursdag (“birthday”). Eclipsed non-native Middle English nativitee (“birth, nativity, birthday”), from Old French nativité, nativited, from Latin nātīvitas.