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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
At least 10 days prior
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "at least 10 days prior" is correct and usable in written English
You can use it to refer to a time frame that begins 10 days before a particular event. For example, you might say: "All applications must be received at least 10 days prior to the start of the course."
✓ Grammatically correct
Academia
Science
News & Media
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
16 human-written examples
This license application must be filed at least 10 days prior to the date on which full power operations are desired to commence.
Academia
Therefore, any requests for substitutes must be submitted in writing to the Program Registration Team at least 10 days prior to the start of the program.
(f) The licensee of a UHF TV station which is not in operation on, but assigned to, the same allocated channel which a 1000 watt UHF translator station is authorized to use (see § 73.3516, "Specification of facilities"), shall notify the licensee of the translator station, in writing, at least 10 days prior to commencing or resuming operation.
Academia
This form must be submitted to the MSN Program Office via email (son‐[email protected]) at least 10 days prior to the start of the semester.
Academia
Non-student groups and individuals can request security services by completing a Duke Police special events request form at least 10 days prior to your event.
Academia
This proposal is submitted to the student's advisory committee at least 10 days prior to the date of the qualifying exam.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
Applications must be submitted at least 90 days prior to the first day of the proposed conference.
Academia
Positive use was identified as subjects consuming antidepressant drugs at therapeutic dosages for every day for at least 15 days prior to the interview.
Science
Smokers were defined as individuals who smoked at least 5 cigarettes per day while past smokers had quit smoking for at least 30 days prior to examination.
Science
All animals were allowed to recover for at least 7 days prior to any behavioral testing.
Science & Research
Students must fulfill two immunization requirements at least 30 days prior to registering for classes.
Academia
Expert writing Tips
✓ Best practice
Use "at least 10 days prior" when you need to specify a minimum timeframe before an event, allowing for flexibility while ensuring timely action or preparation.
⚠ Common error
A common mistake is assuming "at least 10 days prior" means exactly 10 days. Remember, it indicates a minimum of 10 days, meaning more time is acceptable unless otherwise specified.
Linguistic Context
The phrase "at least 10 days prior" functions as an adverbial phrase modifying a verb, specifying a minimum time frame before a particular event or action must occur. It sets a condition related to timing, as shown by Ludwig.
Expression frequency: Common
✓ Frequent in
Academia
50%
Science
31%
News & Media
13%
⚠ Less common in
Formal & Business
6%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "at least 10 days prior" is a grammatically sound and commonly used way to specify a minimum timeframe before a particular event. As confirmed by Ludwig, it functions as an adverbial phrase used to set deadlines or provide advance notice, and is frequently seen in academic, scientific, and news contexts. While suitable for formal writing, remembering that it means 10 days or more is key to avoiding misinterpretations.
Alternative expressions
Phrases that express similar concepts, ordered by semantic similarity:
a minimum of 10 days beforehand
Replaces "at least" with "a minimum of" and "prior" with "beforehand" to emphasize the minimum requirement and timing.
no sooner than 10 days before
Emphasizes that the earliest acceptable time is 10 days before an event.
10 days in advance, or more
Clarifies that more than 10 days is acceptable, adding flexibility.
10 days ahead of time, at the earliest
Similar to the previous one, but highlights that it is the earliest acceptable time.
at least 240 hours before
Converts the time frame into hours for greater precision in certain contexts.
with 10 days' notice, minimum
Shifts the focus to providing notice, specifying the minimum duration.
FAQs
What does "at least 10 days prior" mean?
The phrase "at least 10 days prior" means a minimum of ten days before a specified event or date. It indicates that the action or requirement must be completed no later than ten days before the event, but it can be done earlier.
How can I use "at least 10 days prior" in a sentence?
You can use "at least 10 days prior" to specify a deadline or timeframe. For example: "All applications must be submitted "at least 10 days prior" to the event."
What can I say instead of "at least 10 days prior"?
You can use alternatives such as "a minimum of 10 days beforehand", "no sooner than 10 days before", or "10 days in advance, or more".
Is it better to say "at least 10 days prior" or "at least 10 days before"?
Both phrases are correct and generally interchangeable. "Prior" tends to be slightly more formal than "before", but the difference is minimal. Choose the one that best fits the overall tone of your writing.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested