Birthday meaning
The day of one's birth.
noun
The day of a person's birth or a thing's beginning.
noun
The anniversary of one's birth.
noun
The anniversary of the day on which something is created.
noun
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Your birthday is defined as the day on which you are born, or the annual anniversary of that day.
If you were born on July 1, then July 1 is an example of your birthday.
noun
The date on which someone is born or something is created, more commonly called birthdate or date of birth.
noun
The anniversary of this day.
noun
in one's birthday suit
- Naked; nude.
idiom
Idioms and Phrasal Verbs
in one's birthday suit