One month prior

USAGE SUMMARY

The phrase "One month prior" is correct and usable in written English.
It can be used to indicate a time frame that is one month before a specific date or event. Example: "The report was submitted one month prior to the deadline."

✓ Grammatically correct

Science

Academia

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

One month prior, she was diagnosed with bronchitis and treated with moxifloxacin, again with no improvement.

Critical Ultrasound Journal

One month prior to presentation, his nephrolithiasis was treated with extracorporeal shock wave lithotripsy and ureteral stent placement.

Journal of Ophthalmic Inflammation and Infection

One month prior to presentation, he was involved in a car accident with no obvious trauma to the neck.

The Journal of Headache and Pain

One month prior to that, I was living in the Middle East.

Huffington Post

One month prior to being diagnosed with cancer is when I became able to finally feel it.

Huffington Post

One month prior, she was diagnosed with anterior uveitis.

CKJ: Clinical Kidney Journal

One month prior to admission, he developed dilated pupils and began bumping into objects.

BMC Veterinary Research

One month prior to deployment of the EPR, posture was a significant indicator of participation in the conversation.

Critical Care

One month prior, she presented to the ophthalmologist with bilateral eye pain and redness and was diagnosed with anterior uveitis.

CKJ: Clinical Kidney Journal

Current flight activity above India and Pakistan vs one month prior.

The Washington Post

Official transcripts from all colleges/universities attended must be on file one month prior orientation.

Columbia University

Expert writing Tips

Best practice

When using "one month prior", ensure the context clearly establishes the reference point in time to which the phrase refers. For instance, "One month prior to the surgery, the patient underwent a series of tests".

Common error

Avoid using "one month prior than". The correct form is "one month prior to" or "one month before".

Linguistic Context

The phrase "one month prior" functions as an adverbial phrase of time, specifying when an event occurred in relation to another event. It indicates a duration of one month preceding a particular point in time. Ludwig provides numerous examples illustrating this usage.

Expression frequency: Very common

Frequent in

Science

41%

Academia

30%

News & Media

15%

Less common in

Wiki

6%

Formal & Business

6%

Reference

2%

Ludwig's WRAP-UP

The phrase "one month prior" serves as a temporal marker, denoting a period of one month preceding a specific event or date. Ludwig AI affirms its grammatical correctness and usability in written English, while also presenting a myriad of real-world examples that underscore its prevalence across diverse domains, particularly in scientific, academic, and news contexts. Its versatility, coupled with its straightforward meaning, renders it a valuable tool for establishing temporal relationships in writing. When using "one month prior", clarity is key: ensure the context establishes the reference point to which the phrase alludes. While similar phrases like "a month before" or "one month earlier" exist, "one month prior" maintains a formal tone suitable for professional communication.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

A month before

Uses a simpler construction by omitting "one" and "prior".

One month earlier

Replaces "prior" with "earlier", focusing on the time sequence.

Approximately one month before

Adds "approximately" to indicate an estimation, softening the exactness.

A month preceding

Uses the term "preceding" which is more formal than "before".

About a month ago

Uses "ago" to reference the past from the current time, instead of relative to another event.

Thirty days before

Specifies the time frame in days for increased precision.

A month in advance

Focuses on preparation or planning ahead of time.

Four weeks preceding

Uses a more precise measurement (four weeks) and a formal term (preceding).

One month ahead of time

Emphasizes that something is prepared or occurs in advance.

In the month leading up to

Describes a period of time culminating in a specific event.

FAQs

What does "one month prior" mean?

The phrase "one month prior" means one month before a specific event or date. It indicates a period of 30 days (approximately) leading up to that point in time.

How to use "one month prior" in a sentence?

You can use "one month prior" to specify the timing of an event in relation to another. For example, "The application deadline is "one month prior" to the start of the program".

What can I say instead of "one month prior"?

You can use alternatives like "a month before", "one month earlier", or "approximately one month before" depending on the context.

Is it correct to say "one month prior than"?

No, it is incorrect. The correct preposition to use with "prior" is "to". Therefore, the correct phrase is "one month prior to".