Event (noun)

1. Something that happens or takes place, especially something of significance.
2. A happening or occurrence, especially one of some importance.
3. A planned public or social occasion.
4. A significant change or turning point in a situation.
5. A single contest in a sport or competition.

Origin:

From middle english evenement, from old french evenement, from latin eventus ("outcome, event"), from evenīre ("to come out"), from ex- ("out") + venīre ("to come").

Examples:

1. The concert was a major event.
2. The election was a significant event in the country's history.
3. The party was a social event attended by many guests.
4. The accident was a turning point in his life.
5. The match was a single event in the championship.