The part of a town next to the sea, where people can walk and see the water.
Seafronts are usually nice places for people to visit and enjoy the view of the sea.
Examples:
We took a walk along the seafront.
The shops on the seafront sell ice cream.
I like to sit on the benches on the seafront and watch the waves.
The seagulls on the seafront are always looking for food.
The seafront is the best place to see the sunset.
The seafront is where the land meets the sea.