noun

A "lighthouse" is a tall tower-like structure that is very helpful for ships and sailors. It stands near the coast and has a light on top of it. This light helps ships navigate, especially at night or during bad weather, so they can safely reach the harbor.

Example

1. The lighthouse is a tall building with a bright light on top.
2. The lighthouse helps ships see where they are going at night.
3. The lighthouse is a symbol of hope for sailors.