Question

occurrence

Accepted Answer

oc‧cur‧rence AC /əˈkʌrəns $ əˈkɜː-/ noun
1[countable] something that happens → occur
frequent/rare/common occurrence
Laughter was a rare occurrence in his classroom.
Flooding in the area is a common occurrence.
2[singular] the fact of something happening
occurrence of
The frequent occurrence of earthquakes in the area means that the buildings must be specifically designed to withstand the force.
THESAURUS
event something that happens, especially something important, interesting, or unusual: He spoke of the tragic event in which more than 100 people died. | recent political events
occurrence /əˈkʌrəns $ əˈkʌrəns/ formal something that happens – used especially when saying how often something happens: Divorce is a common occurrence these days. | Storms like this one are fortunately a rare occurrence. | Accidents are almost a daily occurrence on this road.
incident something that happens, especially something that is unusual or unpleasant, or something that is one of several events: He died after a violent incident outside a nightclub. | This latest incident could put an end to his career.
occasion an important social event or celebration: She only wore the dress for special occasions. | It was his 100th birthday, and friends and family gathered to mark the occasion.
affair [usually singular] something that happens, especially something shocking in political or public life which involves several people and events: The affair has caused people to lose confidence in their government.
phenomenon /fɪˈnɒmənən, fɪˈnɒmɪnən $ fɪˈnɑːmənɑːn, -nən/ something that happens or exists in society, science, or nature, especially something that is studied because it is difficult to understand: natural phenomena such as earthquakes | Homelessness is not a new phenomenon.

Occurrence Event People Incident əˈkʌrəns Rare Area Common