o

noun

ˈō How to pronounce o (audio)
Definition of onext
as in zero
the numerical symbol 0 or the absence of number or quantity represented by it our zip code is six-o-three-seven-five

Synonyms & Similar Words

Relevance

Example Sentences

Recent Examples of Synonyms for o
  1. zero
  2. nothing
  3. nil
  4. aught
Noun
  • Tech has crept into every facet of everyday life, like an invisible fog of ones and zeros.
    — Hillary Busis, Vanity Fair, 28 Aug. 2026
  • Those sizes vary from size four all the way down to zero, but even the zeros weren’t small enough.
    — Marti Noxon, HollywoodReporter, 26 Aug. 2026
Definition of zero
Noun
  • While CinemaCon 2026 brought us exciting news about new films, it was also bogged down with status quo nothings about how Amazon MGM still hasn’t found a new James Bond.
    — Jason P. Frank, Vulture, 17 Apr. 2026
  • When Dana, who, like Virginia, had been successful in writing pleasant but undistinguished nothings—in her case, songs for Billy Rose’s revues—decided to try taking on more serious music by studying with Boulanger, Virginia entered a deep downward spiral.
    — Literary Hub, Literary Hub, 7 Jan. 2026
Definition of nothing
Noun
  • Another stunner was Brentford’s 3-nil win over Tottenham Hotspur.
    — Greg Cote August 23, Miami Herald, 23 Aug. 2026
  • Four-nil down at half-time, Mbappe started a ridiculous comeback.
    — James Horncastle, New York Times, 19 July 2026
Definition of nil
Noun
  • Jonah Kahn worked for one of these companies in the early aughts as a wholesaler.
    — Vito Emanuel, NPR, 25 Aug. 2026
  • Victoria’s Secret under CEO Hillary Super has doubled down on its authority as the go-to destination for bras and bra fittings—and recaptured some aughts nostalgia—riding that strategy to four consecutive quarters of growth.
    — Emma Hinchliffe, Fortune, 24 Aug. 2026
Definition of aught
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.

Browse Nearby Words

nymphs
o
o's
See all Nearby Words

Cite this Entry

“O.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/o. Accessed 1 Sep. 2026.

Copy Citation
Love words? Need even more definitions?

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

Popular in Grammar & Usage

See More

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

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

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

Why does English have so many silent letters?

7 Pairs of Commonly Confused Words
See More

Popular in Wordplay

See More

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

14 Phobias You Probably Haven't Heard Of

Even More Words That Sound Like Insults But Aren't

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

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

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

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

14 Phobias You Probably Haven't Heard Of
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