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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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a day prior

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "a day prior" is correct and usable in written English.
You can use it to indicate an event that happened on the day before a certain day. For example: "I received a phone call from the company a day prior to my scheduled interview."

✓ Grammatically correct

News & Media

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

This Afterle orIginally appeared on VICE Usigned

News & Media

Vice

Deterioration of variability can occur a day prior to clinically apparent deterioration in patients at risk for vasospasm.

"It was pretty surprising, pretty crazy, because he had just been hospitalized a day prior," said Cory Amundson, 29, a photographer who attended, his inaugural visit to Paisley.

A day prior to your editorial, you published Simon Baron-Cohen's piece that identified empathy between Israelis and Palestinians as "a necessary step" for peace.

News & Media

The Guardian

A day prior to Oumoh's rescue, Save The Children's own rescue boat, which operates off the coast of Libya, picked up two Ivorian toddlers whose mother had drowned in a shipwreck.

News & Media

The Guardian

"I feel very comfortable that justice has been served," Obama told reporters at his final White House press conference on Wednesday, when asked about his move a day prior to commute the sentence handed down to Manning in 2013.

News & Media

The Guardian

A day prior, imams around Turkey delivered state-sanctioned sermons that connected those who died defending Erdogan's rule to the fighters killed in Turkey's war of independence after the collapse of the Ottoman Empire.

First of all, day-ahead market takes place a day prior to the energy delivery time.

For pre-tactical planning, the action is taken a day prior to the day of operation.

It was still averaging about 2.8 million views a day prior to reaching the 6 billion mark.

News & Media

Forbes

"You will get updates in a timely manner, be able to track your luggage, and change your flight quickly, if needed". Apps update frequently, so check your device a day prior to departure for the latest software.

News & Media

Forbes
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Expert writing Tips

Best practice

When using the phrase "a day prior", ensure the context clearly establishes the reference point. For example, "The meeting was scheduled for Tuesday; a day prior, the documents were sent out."

Common error

Avoid ambiguity by clearly specifying what 'a day prior' refers to. Saying "The deadline was a day prior" is unclear without specifying what date serves as the reference.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

77%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "a day prior" functions as an adverbial phrase modifying a verb or clause by specifying when an action took place. It indicates that something occurred one day before a specified event. As Ludwig AI confirms, this phrase is correct and usable in written English.

Expression frequency: Very common

Frequent in

News & Media

42%

Science

40%

Wiki

12%

Less common in

Formal & Business

3%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "a day prior" is a versatile and common phrase used to indicate that an event occurred one day before a specific reference point. Ludwig AI confirms its grammatical correctness and usability across various contexts. It functions as an adverbial phrase, providing temporal context and clarity in sequencing events. While generally neutral in register, it appears most frequently in news and media, scientific writing, and general communication. When using "a day prior", ensure clear context to avoid ambiguity and leverage related phrases like "the previous day" or "one day before" for variety. Understanding its function and applying best practices enhances precision in writing.

FAQs

How can I use "a day prior" in a sentence?

Use "a day prior" to indicate that something happened one day before a specific event or date. For example, "The announcement was made "a day prior" to the conference."

What phrases are similar to "a day prior"?

Alternatives to "a day prior" include "the previous day", "one day before", or "the day preceding".

Is it correct to say "the day prior" instead of "a day prior"?

Both "a day prior" and "the day prior" can be grammatically correct, but "the day prior" usually implies a more specific, already established reference point. "A day prior" is more general.

How does "a day prior" differ from "a day after"?

"A day prior" refers to the day before a specific event, while "a day after" refers to the day following the event. They indicate opposite temporal directions.

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Source & Trust

77%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: