day in and day out

idiomatic phrase

variants or day in, day out
: for an indefinite number of successive days
does the same thing at work day in and day out

Examples of day in and day out in a Sentence

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.
Charlotte restaurants work hard, day in and day out, to nourish our bellies — and our spirits — with all kinds of food. Heidi Finley, Charlotte Observer, 29 Dec. 2025 Joby Aviation Operating a reliable air taxi service is a demanding proposition that will require Joby’s aircraft, charging infrastructure, and scheduling software to perform safely and reliably day in and day out. IEEE Spectrum, 28 Dec. 2025 What’s less likely normal is that someone who’s wearing some type of coverup product is a professional athlete who competes at the intense level Brown does day in and day out. Jackie Fields, PEOPLE, 21 Dec. 2025 Chicken is top-tier for adding more protein into your diet—but eating it day in and day out could get monotonous. Jillian Kubala, Health, 12 Dec. 2025 See All Example Sentences for day in and day out

Word History

First Known Use

1824, in the meaning defined above

Time Traveler
The first known use of day in and day out was in 1824

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Cite this Entry

“Day in and day out.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/day%20in%20and%20day%20out. Accessed 7 Jan. 2026.

Last Updated: - Updated example sentences
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