occasion
//əˈkeɪʒən//
Noun
occasionSingular
occasionsPlural
1
A particular time when something happens or a particular event
This is a special occasion for our family.
2
A special or important event, ceremony, or celebration
We only use the good china on special occasions.
3
A suitable or appropriate time or opportunity for doing something
This is a perfect occasion to discuss the issue.
4
A reason or cause for something
There was no occasion for such anger.
Verb
1
To cause or bring about something (formal usage)
The incident occasioned a great deal of concern among the staff.