Definition:
an event is a noun that means a planned occurrence which typically has an important purpose. It may refer to a festive occasion such as a party, performance, or show, or it can refer to a significant happening or occurrence in history, such as a natural disaster or a national holiday. Events can also be smaller, everyday occurrences such as a meeting or a planned activity with friends. In terms of grammar, event is always singular, even when an event consists of or is related to multiple activities.
Examples:
1. The event was a success due to its innovative content and presentation.
2. Emma was so excited for the surprise event her friends had planned.
3. The city was upheld in history due to the great earthquake event of 2020.
Tips:
when using the noun form of event, it is important to remember that it can be used to discuss a singular occurrence or it may refer to multiple occurrences of a certain type related to each other or with an overarching theme. For example, when saying 'The event was cancelled due to bad weather' it is referring to a single event, whereas 'The event was cancelled due to the pandemic' is referring to multiple events.