In Greek mythology, Oceanus is the god of rivers and water.

The ocean is vast and mysterious.

The Indian Ocean is an ocean located between Africa, Asia, Australia, and Antarctica.

The Atlantic Ocean is the second largest ocean in the world.

The Pacific Ocean is the largest ocean in the world.

The Arctic Ocean is the smallest and northernmost of the world's oceans.

The Antarctic Ocean \/ the Weddell Sea \/ the Ross Sea are the main oceanic areas around Antarctica.

The Iapetus Ocean is the third largest ocean in the solar system.

Oceanography studies the seas and oceans.

The oceanographic institute studies marine phenomena.