Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
months of validity
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "months of validity" is correct and usable in written English.
It can be used to refer to the duration for which something, such as a document or offer, remains valid or effective. Example: "The coupon you received has three months of validity, so make sure to use it before it expires."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
period of validity
effective date
valid from date
validation date
expiration date
questions of validity
date of order
term of validity
date of certification
date of validity
date of expiry
validity period
date of desirability
start date
issues of validity
date of term
date of approval
date of viability
date of admissibility
date of test
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
5 human-written examples
– UK passports could lose nine months of validity.
News & Media
It is also required that the organic matter (C) content of the biofertiliser shall be at least 20%%, irrespective of the physical form and that the product has at least 6 months of validity (Suh et al. 2006).
Passport with at least 6 months of validity.
Wiki
If you have upcoming travel plans, make sure that the passport you will be using has at least six months of validity left.
Wiki
Although you are only required to possess a passport that is valid for 3 months past your stay, it is recommended that you have at least 6 months of validity on your passport to be safe in the event of travel issues.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
You need a valid passport with at least six months of remaining validity.
Wiki
Preparation: Your valid passport which must have at least six (6) months of remaining validity with at least one blank visa page in it.
Wiki
To apply for an L or F visa, visit the Chinese embassy or consulate-general in the jurisdiction where you live and provide the following information: your passport (with at least six months of remaining validity and at least one blank visa page), a completed application form, one passport photo, round-trip air tickets and hotel reservations.
News & Media
16 The food frequency questionnaire had correlation coefficients for reproducibility equal to 0.58 over 12 months and validity of 0.27 for energy, typical of dietary questionnaires.
Science
Two - 3.5 centimeter (1.4 in) by 4.5 centimeter (1.8 in) passport photos, A valid passport (six months of more of remaining validity).
Wiki
Interpretation of results is limited by the small sample size and the absence of control group; nevertheless, the remarkable antiproteinuric response and the recovery of proteinuria to baseline after three months of drug withdrawal support the validity of our observations.
Science
Expert writing Tips
Best practice
When discussing travel documents, specify the exact number of "months of validity" required to avoid ambiguity.
Common error
Don't assume a standard "months of validity" period. Always verify the specific requirement for the context, as it varies by country, document type, or offer terms.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "months of validity" functions primarily as a noun phrase. It typically specifies a duration for which something is considered valid, such as a passport or a coupon. It is seen across various contexts as illustrated by Ludwig.
Frequent in
News & Media
20%
Science
52%
Wiki
28%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "months of validity" is used to define the duration for which something remains valid or effective. As Ludwig AI states, this phrase is correct and usable in written English. While its usage is relatively rare, it appears across diverse contexts, including news, science, and general informational content. To ensure clarity, always specify the exact number of months required and verify specific requirements for different contexts. Common related phrases include "validity period" and "duration of validity".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
validity period
Focuses on the duration for which something remains valid.
duration of validity
Specifies the length of time that validity is maintained.
period of effectiveness
Emphasizes the time during which something is effective or functional.
length of validity
Highlights the measure of how long something is valid.
expiration timeframe
Focuses on the time leading up to the point of expiration.
validity span
Indicates the extent or range of time that validity covers.
term of validity
Refers to the specific period for which something is valid.
effective period
Highlights the time during which something is in effect or operational.
time of effectiveness
Focuses on how long something remains effective.
legitimacy duration
Emphasizes the period during which something is considered legitimate or acceptable.
FAQs
What does "months of validity" mean in the context of a passport?
In the context of a passport, "months of validity" refers to the number of months your passport must be valid beyond your intended stay in a foreign country. Many countries require at least six "months of validity" to ensure your passport remains valid should any travel delays occur.
Why do some countries require a certain number of "months of validity" on passports?
Countries require a certain number of "months of validity" on passports to protect against unforeseen circumstances such as travel delays, medical emergencies, or extended stays. This ensures that travelers do not overstay their visa and can return home without complications.
How many "months of validity" are typically required for international travel?
While it varies by country, six "months of validity" is a common requirement for many international destinations. However, it's crucial to check the specific requirements of your destination before traveling.
Where can I find information on passport "months of validity" requirements for a specific country?
You can find information on passport "months of validity" requirements on the official website of the destination country's embassy or consulate in your country. Travel advisories issued by your government may also provide useful information.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested