Beacon (noun)

1. A strong light or signal, typically one in a series, used as a guide for navigation.
2. A person or thing that is a source of inspiration or guidance.

Origin:

From the old english word "bēacn" meaning "signal" or "guiding light".

Examples:

1. The lighthouse served as a beacon for ships at sea.
2. The airplane followed the beacon to the airport.
3. The beacon was lit to guide the lost hikers.
4. She was a beacon of hope for her community.
5. The city served as a beacon of progress.