AT ONCE Synonyms: 80 Similar and Opposite Words

at once

phrase

Definition of at once

as in concurrently

at one and the same time I have three papers due all at once.

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in now

without delay Call me at once when you get this message.

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Antonyms & Near Antonyms

Example Sentences

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.

Recent Examples of at once Similarly, selling appreciated assets all at once can move you into a higher IRMAA bracket. — Miranda Marquit, Encyclopedia Britannica, 3 Sep. 2026 At risk of power shortages A single large AI data center now consumes as much electricity as a city of 80,000 people, Khosla Ventures founder Vinod Khosla wrote in Fortune this year, and companies are building hundreds of them at once. — Catherina Gioino, Fortune, 3 Sep. 2026 In a world where women endure the impossible to bring new life into the world—holding agony and beauty all at once—shouldn’t women be celebrated for more than just their idealized form and youth? — Literary Hub, 2 Sep. 2026 Willed seeing would be replaced by a mechanics of absorption, the artist-subject at once unguarded and self-aware. — Jeffrey Weiss, Artforum, 1 Sep. 2026 See All Example Sentences for at once

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atonal

at once

atone

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“At once.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/at%20once. Accessed 5 Sep. 2026.

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Synonyms of at once

phrase

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