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.
On day one, Mr. Burnham already axed Keir Starmer’s unpopular digital ID plan and promised a more devolved government.
From The Wall Street Journal ● Jul. 24, 2026
A government spokesperson said: "We've made paternity and unpaid parental leave day one rights through our Employment Rights Act, and have rolled out 30 hours of funded childcare a week to working families."
From BBC ● Jul. 22, 2026
The next day, one of the deputies took the grenade to the department’s Biscailuz Regional Training Center, where live explosive devices are prohibited, the lawsuit said.
From Los Angeles Times ● Jul. 19, 2026
Eufaula Mayor Jack Tibbs says he has been "impressed" by Figures since day one.
From BBC ● Jul. 18, 2026
I woulda done it on day one, but it wasn't my place to step into it.
From "How It Went Down" by Kekla Magoon
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.
