Memorial (noun)

1. Something created or established to commemorate a person, event, or a group of people.
2. A monument or statue created in memory of someone or something.
3. A ceremony or event held in memory of someone who has died.

Origin:

From the latin word 'memorialis' which means 'serving as a reminder'.

Examples:

1. The war memorial honors the soldiers who died in battle.
2. The 9/11 Memorial in New York City serves as a reminder of the tragic event.
3. They held a memorial service for their friend who passed away.
4. The Lincoln Memorial is a famous landmark in Washington D.C.
5. The company created a memorial scholarship in memory of their former CEO.