The Pacific Ocean

For example: “The Pacific Ocean is the largest ocean on Earth.”

The Atlantic Ocean

The Atlantic Ocean is the largest ocean on the planet.

the Atlantic Ocean and the Pacific Ocean

This is very symbolic, as the Atlantic Ocean and the Pacific Ocean are the biggest oceans that covers almost the entire planet.

the Pacific Ocean (), the Atlantic Ocean and the Indian Ocean the largest(the second largest) (third largest)

The three largest oceans on Earth are the Pacific Ocean (the largest), the Atlantic Ocean (the second largest) and the Indian Ocean (third largest).