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.

Synonyms & Similar Words

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 All eight episodes, which run approximately 45 minutes each, will be released at once. — Lexi Carson, HollywoodReporter, 19 Aug. 2026 Update your day-to-day looks with smooth leather bags in fall colors, keep your essentials close with compact crossbody bags, and carry everything at once with spacious totes that can fit laptops and more with room to spare. — Caley Sturgill, Southern Living, 18 Aug. 2026 Summary Life after divorce for women can bring freedom, fear, loneliness, financial responsibility and unexpected strength all at once. — Kristin Vance Richards, Forbes.com, 18 Aug. 2026 Like all good literature, Buffy and Angel are more than one thing at once. — Emily Temple, Literary Hub, 18 Aug. 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 22 Aug. 2026.

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Synonyms of at once

phrase

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