Meaning & use

ocean

noun·Everyday

Last updated

UK/ˈəʊʃn/
US/ˈoʊʃn/

Meanings

  1. nouncountable or uncountable

    One of the very large areas of salt water that together cover most of the Earth's surface.

    Grammar: Use the for a specific one: the Pacific Ocean; use the ocean for the sea in general.

    Patterns

    • across the ocean
    • in the ocean

    The ship crossed the Atlantic Ocean in six days.

    Whales travel thousands of miles through the ocean.

    We stayed in a hotel overlooking the ocean.

  2. nouncountableinformalfigurative

    A very large amount of something.

    Grammar: Usually followed by of, and often plural: oceans of time.

    Patterns

    • an ocean of something
    • oceans of something

    There were oceans of food at the wedding.

    She had an ocean of patience.

    The cave contained oceans of dark, silent space.

Word forms

pluraloceans

Common combinations

Pacific Ocean
The Pacific Ocean is the largest on Earth.
across the ocean
Her family lives across the ocean.
ocean floor
Scientists mapped the ocean floor.
ocean current
A warm ocean current heats the coast.
ocean view
We booked a room with an ocean view.
a drop in the ocean
My donation is just a drop in the ocean.

Synonyms and how they differ

sea
It is smaller than an ocean and partly enclosed by land, though people use it loosely for either.
the deep
It is literary and refers to the open water far from shore.
the main
It is an old poetic name for the open sea.
waters
It is a vague word that need not mean a full ocean.

Opposites

Word family

oceanic adjective
relating to the ocean
oceanography noun
the scientific study of the oceans
oceanographer noun
a scientist who studies the oceans
ocean-going adjective
able to travel across oceans
transoceanic adjective
crossing the ocean

Commonly confused: ocean or sea?

ocean vs sea

A sea is generally smaller than an ocean and partly enclosed, like the Mediterranean, but everyday speech often mixes them.

Practice

The Atlantic, Pacific and Indian are all examples of an ______.

Make it your own

Write a sentence using “ocean”, then check it and compare it with the examples above.

Your sentence stays on this page and is not sent anywhere.

Explore more words