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

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Example Sentences

Recent Examples of Synonyms for o
  1. zero
  2. nothing
  3. nil
  4. aught
Noun
  • Riemann himself proved that nontrivial zeros of the zeta function can only be found in a vertical strip between zero and 1.
    — Quanta Magazine, Quanta Magazine, 19 Oct. 2026
  • Engineers could represent the two configurations as binary digits, or zeros and ones.
    — Aamir Khollam, Interesting Engineering, 13 Oct. 2026
Definition of zero
Noun
  • Women continue marching down the runway in their stilettos and frothy little nothings.
    — Danielle Pergament, Allure, 19 Oct. 2026
  • 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
Definition of nothing
Noun
  • And in the current geopolitical climate, the prospects are next to nil.
    — Ian Johnstone, The Conversation, 9 Sep. 2026
  • Another stunner was Brentford’s 3-nil win over Tottenham Hotspur.
    — Greg Cote August 23, Miami Herald, 23 Aug. 2026
Definition of nil
Noun
  • Roseberry repurposed the outdated materials of an early aughts IT department, while McQueen’s robotic arms were borrowed from a factory where they were used to paint cars — hardly super high-tech advancements threatening species-level extinction.
    — Leah Dolan, CNN Money, 20 Oct. 2026
  • Their son, Trip (Joe Keery), resides in Los Angeles and works as a producer for early-aughts reality TV shows.
    — Aramide Tinubu, Variety, 19 Oct. 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.

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Cite this Entry

“O.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/o. Accessed 27 Oct. 2026.

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