Birthday
Definition 1 of 3
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Cultural Significance
Celebrating birthdays is common in many cultures, often involving parties and gifts. In the USA, sweet sixteen is a significant birthday celebration.
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Age Milestones
Certain ages are especially celebrated as milestones, like 18th and 21st birthdays. My 18th birthday was a big event with family and friends.
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Birthday Expressions
Phrases like 'Happy Birthday' or 'Many happy returns' are common birthday greetings. We all sang 'Happy Birthday' to him when he cut the cake.