Your birthday is the anniversary of your birth. It is the same day every year:

  • My birthday is 7th July.

On your birthday, your friends and family may send you birthday cards and  birthday presents (gifts). You may celebrate  your birthday with a birthday party, with a birthday cake, and with decorations like candles and balloons . Your friends may sing you a Happy Birthday song like this one:

Questions about Birthdays

  • When's your birthday?
  • What do you want to do for your birthday?
  • What do you want for/on your birthday? (gifts)
  • What did you get for/on your birthday? (gifts)
  • How was your birthday?
  • What did you do for/on your birthday?
  • How old are you now?
  • What age are you turning?

Birthday Wishes

Here are things that people write on birthday cards and presents, or in letters and emails, or just say in conversation:

  • Happy Birthday!
  • Best Wishes for a very Happy Birthday
  • We wish you a happy birthday.
  • Wishing you a happy birthday.
  • Have a great birthday!
  • Enjoy your special day!
  • Enjoy every moment.
  • May all of your birthday wishes come true.
  • Thinking of you on your special day.

Birthday Party Words

  • balloons
  • birthday boy / birthday girl
  • birthday cake
  • birthday card
  • birthday gift / birthday present
  • birthday invitation
  • birthday party
  • candles (on cake)
  • icing/frosting (on cake)
  • napkins/serviettes
  • ribbon
  • wrapping paper / gift wrap (for birthday gifts)
Note that your birthday and birthdate are not exactly the same thing. Your birthdate , or date of birth, is the actual date on which you were born:
  • When were you born? What's your birthdate?
  • What year were you born in?
  • My date of birth is 7th July 1997.
  • Write your full name, address and birthdate on the application form.

sources : Original Link