birthday
In Italian, 'compleanno' is used to refer to the anniversary of someone's birth. It is used in the same way as in English, and can be used in phrases such as 'Buon compleanno' (Happy birthday) or 'Il mio compleanno è il 15 luglio' (My birthday is July 15th).
Today is my birthday.
This sentence is used to indicate the speaker's birthday falling on the current day. The word 'compleanno' corresponds to 'birthday' in English.
Happy Birthday, Maria!
This sentence is used to wish Maria a happy birthday. The term 'Buon compleanno' corresponds to 'Happy Birthday' in English.
Is your birthday on December 12?
This query is used to confirm if the person's birthday falls on December 12. Here again, 'compleanno' signifies 'birthday' in English.