day one
Americannoun
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.
“But my heart already belongs to Llama. We’ve been married since day one.”
From Literature
Between all the extra tutoring and study sessions I’d been receiving since practically day one, and the fact that I was the commander in chief’s daughter, well, there wasn’t a whole lot of time for that.
From Literature
As old jobs, titles and charts are destroyed, people are still important to help capture the quickly changing landscape and constant decisions—each person makes 35,000 decisions a day, one study claims.
“It’s another version of scraping, which has been a problem since day one,” Caen said, referencing how Anthropic’s Claude and other LLMs have been trained on large amounts of copyrighted material from across the internet.
From MarketWatch
Later that day, one of the trainees asked me whether they were already behind schedule.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
