occasion
nounUK /əˈkeɪʒn/
US /əˈkeɪʒən/
A special time when something happens.
Her birthday was a happy occasion.
RELATED WORDS
OTHER MEANINGS
2. A good chance or reason to do something.
I had no occasion to use my umbrella.
3. A formal or important event.
The wedding was a grand occasion.
4. To cause something to happen.
His joke occasioned a lot of laughter.