event (n)

This year's Olympic Games will be the biggest ever sporting event.
Susannah's party was the social event of the year.
The police are trying to determine the series of events that led up to the murder.
The annual charity event raised significant funds for the local community.
Attending the international conference was a career-defining event for many professionals.
The wedding was a joyous event, filled with laughter, music, and heartfelt speeches.
The unexpected turn of events during the business meeting caught everyone by surprise.