day one

noun

often capitalized D&O
: the first day or very beginning of something

Examples of day one in a Sentence

We've known this about the project since Day One. since day one of this project, we've always insisted that we would create the best product possible without any consideration of cost
Recent Examples on the Web
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.
Prioritize Your Media Presence My advice to aspiring entrepreneurs is to prioritize building a media presence from day one. Expert Panel®, Forbes, 20 Nov. 2024 However, day one was reported to have the strongest chance of viewing compared to the following nights. Skyler Caruso, People.com, 19 Nov. 2024 Ali from day one was so confident and took it to George throughout the promotion. Nina Turner, Newsweek, 30 Oct. 2024 On day one of the women’s gymnastics qualifications in Paris, a nervous Biles took the floor to warm up. Kayla Blanton, SELF, 25 Oct. 2024 See all Example Sentences for day one 

Word History

First Known Use

1971, in the meaning defined above

Time Traveler
The first known use of day one was in 1971

Dictionary Entries Near day one

Cite this Entry

“Day one.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/day%20one. Accessed 30 Nov. 2024.

Last Updated: - Updated example sentences
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