1. plural of birthday; the anniversaries of the days on which people were born

Examples

• We celebrate our birthdays every year with cake and presents.
• The twins have their birthdays on the same day.
• She keeps track of all her friends’ birthdays in a calendar.
• Children’s birthdays are often marked with parties.
• My family always makes birthdays special occasions.
• The restaurant offers free dessert on customers’ birthdays.