Meaning ofoccasionin English

Noun

1. a timely or favorable chance; opportunity
2. a particular happening or instance
3. a cause or reason for an event
   The birthday party was a special occasion for the family.
4. a special event or formal gathering
   Her graduation ceremony was a formal occasion that required a suit.
5. a specific event or happening
   The company will hold a meeting on the occasion of its 10th anniversary.