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Synonyms

day one

American  

noun

  1. (often initial capital letters) the very first day or beginning of something.


Etymology

Origin of day one

First recorded in 1975–80


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Selling to a corporate buyer, which would typically offer a 100% all-cash exit at a material premium, was part of the plan from day one, Brenhouse said.

From The Wall Street Journal ● Nov. 3, 2026

The deal will be additive to earnings on day one and add to GE Vernova’s portfolio “industry-leading technology to innovate into the future and serve this growing market,” Strazik says on a call with analysts.

From The Wall Street Journal ● Oct. 28, 2026

"How this team has built in confidence from day one to now, in a short period of time, has been massive. It is still a process, but today was a huge performance."

From BBC ● Oct. 25, 2026

“Our goal from day one has been to ensure the economic benefits of the Games reach our local neighborhoods,” Reynold Hoover, LA28’s CEO, said in a statement.

From Los Angeles Times ● Oct. 20, 2026

“Skipping day one of summer school seems like a bad start,” Dylan says.

From "What If It's Us" by Becky Albertalli and Adam Silvera

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