as in beginnings
the point at which something begins
since day one of this project, we've always insisted that we would create the best product possible without any consideration of cost
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Recent Examples of Synonyms for day ones
Noun
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Prince Harry gave the ring (ironically a sign of rebellion and new beginnings) to his new wife Meghan Markle in 2018.
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Lutnick’s letter marks the beginnings of a new regulatory regime that gives the US government control over the release of frontier AI models.
Noun
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Schlittler allowed four homers after allowing six homers in his first 17 starts.
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Before processing starts, these enclaves employ attestation mechanisms to confirm the integrity of the code and environment.
Noun
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In the past few years, Underwood has come to realize that a bunch of barking alphas may not, in fact, be the best way to build a successful pack.
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As a ballplayer, Kent was as irascible as Bonds; the two alphas reportedly brawled behind clubhouse doors, and famously clashed in the dugout during a 2002 game, when Bonds lunged for Kent’s throat and pushed him against the wall.
Noun
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Recent Harvard commencements have grown much more political.
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Originally called MarchingOrder, Tassel had provided services for commencements for around 20 years before adding the AI name offering.
Noun
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The vast majority of these launches have involved the 59-foot-tall (18-meter-tall) Electron, which gives small satellites dedicated rides to orbit.
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The agency is anticipating 29 rocket launches and 28 moon landings during the third phase.
Noun
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Anxiety disorders can persist into adulthood, particularly those disorders with early onsets and those that are left untreated.
Cite this Entry
“Day ones.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/day%20ones. Accessed 2 Jul. 2026.
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