Birthdate vs. Birthday

Birthdatenoun

the year, month, and day of someone's birth; date of birth

Birthdaynoun

The anniversary of the day on which someone is born.

Birthdaynoun

The anniversary of the day on which something is created.

Birthdaynoun

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

Birthdayverb

To celebrate one's birthday.

Birthdaynoun

The day in which any person is born; day of origin or commencement.

Birthdaynoun

The day of the month in which a person was born, in whatever succeeding year it may recur; the anniversary of one's birth.

Birthdayadjective

Of or pertaining to the day of birth, or its anniversary; as, birthday gifts or festivities.

Birthdaynoun

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

Birthdaynoun

the date on which a person was born

Birthdaynoun

the anniversary of the day on which a person was born, typically treated as an occasion for celebration and the giving of gifts

Birthdaynoun

the day of a person's birth

Birthdaynoun

the anniversary of something's origin or foundation

Birthday

A birthday is the anniversary of the birth of a person, or figuratively of an institution. Birthdays of people are celebrated in numerous cultures, often with birthday gifts, birthday cards, a birthday party, or a rite of passage.