the cosmos

noun

: the universe especially when it is understood as an ordered system
the origins of the cosmos

Examples of the cosmos in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
That means Roman will have the benefit of solar power and a lack of obstructions—giving it an unfettered look into the cosmos. — Mary Randolph, Scientific American, 1 Sep. 2026 Cosmologists are eager to learn more about dark energy, an unseen force that, according to the Standard Model of the Universe, makes up about 70 percent of the cosmos and is responsible for accelerating the Universe’s expansion. — Stephen Clark, ArsTechnica, 31 Aug. 2026 With the capability of observing the cosmos with a wide field of view, Roman will generate first-of-their-kind images to help astronomers explore some of the greatest mysteries, including the unexplained expansion of the universe, according to NASA. — Eric Lagatta, USA Today, 25 Aug. 2026 As the cosmos cooled and expanded, the free-floating quarks and gluons started binding together to create the building blocks of all matter, including all those necessary atomic protons and neutrons. — Andrew Paul, Popular Science, 20 Aug. 2026 See All Example Sentences for the cosmos

Browse Nearby Words

the corridors/halls of power
the cosmos
Thecosomata
See all Nearby Words

Cite this Entry

“The cosmos.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/the%20cosmos. Accessed 2 Sep. 2026.

Copy Citation
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of dissonant

See Definitions and Examples »

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

A List of Most Commonly Confused Words

Why do we use apostrophes to show possession?

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Longest Long Words List

Stay Woke

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Bird Names that Sound Like Insults (and Sometimes Are)
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

The Longest Long Words List

Stay Woke
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All