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
cap
Grammar usage guide and real-world examplesUSAGE SUMMARY
The word "cap" is a correct and usable word in written English.
It can be used as a noun, verb, or adjective. Example sentence: He placed a cap on his head to protect his head from the sun.
✓ Grammatically correct
News & Media
Formal & Business
Science
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
60 human-written examples
Assistant treasurer Josh Frydenberg announced on Thursday that in next week's budget the government would cap the amount that public hospital staff and workers in the not-for-profit sector could claim in meals and entertainment entitlements.
News & Media
In a 2014 vote to cap immigration, for example, the question asked was: "Do you accept the popular initiative, 'Stop mass immigration'?
News & Media
He wore a "Richmond Tea Party" baseball cap, as well as a Code Pink sticker saying "Make Out, Not War".
News & Media
No 10 says the idea was trailed in the manifesto and Ed Miliband in principle had accepted the reform, albeit as part of a wider reform of political funding including a cap on individual donations.
News & Media
Third, with the lifting of the cap on student numbers in 2015, now is a perfect chance for all institutions to be flexible.
News & Media
While Labour's MP for Newcastle East and former Cabinet Minister, Nick Brown, declared that the idea was simply "cruel and stupid", in January the party was actively calling for the Government's overall benefit cap to differentiate between regions based on the fact that someone in the north would need less than someone in London.
News & Media
In its submission AGL warned that an overall "cap" on emissions – or a national carbon "budget" – was essential.
News & Media
Rudd said there was no cap or limit on the number of asylum seekers PNG had agreed to take, but he expected over time as people smugglers "got the message" the rate of arrivals would slow.
News & Media
There was a two-year pay freeze after the coalition government came to power, followed by a 1% pay cap for all public sector workers in 2013/14 and 2014/15.
News & Media
The removal of the cap on private patient income means trusts will be able to make more of their income from private patients, to the detriment of NHS patients because the private sector people will be more valuable.
News & Media
The chancellor set out his decision to cap public sector pay rises at 1% a year for two years from 2013 on the back of a two-year pay freeze.
News & Media
Expert writing Tips
Best practice
When using "cap" in a financial context, be specific about what the limit applies to (e.g., spending, investment, debt).
Common error
Avoid using "cap" when you mean "capital", especially in financial or legal contexts. "Capital" refers to assets or resources, while "cap" refers to a limit or covering.
Source & Trust
93%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
Cap functions primarily as a noun representing a limit or a covering, and as a verb meaning to impose a limit. As confirmed by Ludwig AI, it follows standard grammatical rules and is widely used in various contexts.
Frequent in
News & Media
48%
Formal & Business
28%
Science
24%
Less common in
Wiki
0%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
The word "cap" is a versatile term functioning as a noun, verb, and initialism, indicating a limit, covering, or acronym. Ludwig AI affirms its grammatical correctness and usability across various contexts. It's commonly used in News & Media and Formal & Business settings to denote restrictions or physical coverings. To avoid confusion, remember that "cap" differs from "capital". For alternatives, consider words like "limit" or "ceiling", depending on the intended nuance. The sources reflect a high level of authority, making it a reliable and frequently used term in English writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
limit
Focuses on restricting the amount or extent of something, similar to setting an upper limit.
ceiling
Implies an upper boundary that cannot be exceeded, akin to a maximum allowance.
cover
Emphasizes the act of protecting or concealing something, much like placing a lid or covering.
top
Refers to the uppermost part of something, similar to the physical "cap" of an object.
award a title
Specifies the action of bestowing a recognition, similar to awarding a "cap" in sports.
surpass
Highlights exceeding a certain level or achievement, akin to "capping" a previous record.
restrict
Implies a constraint or control, similar to putting a limit on something.
outdo
Focuses on exceeding someone else's performance or achievement, similar to surpassing or "capping".
seal
Emphasizes securing or closing something tightly, similar to using a "cap" to seal a container.
detonator
Refers to an explosive device used to trigger a larger explosion, where "cap" can also be used to define such device.
FAQs
How to use "cap" in a sentence?
You can use "cap" as a noun to refer to a limit, as in "There's a cap on the number of participants". As a verb, it means to set a limit, as in "We need to cap spending". It can also refer to a head covering or a dental crown.
What can I say instead of "cap" (limit)?
You can use alternatives like "limit", "ceiling", or "upper bound" depending on the context.
What's the difference between "cap" and "ceiling"?
"Cap" generally refers to a specific, often externally imposed, limit. "Ceiling", on the other hand, often implies a natural or inherent upper limit. For example, “a salary cap” vs “a glass ceiling”.
Is it correct to say "cap the budget" or "put a cap on the budget"?
Both phrases are correct. "Cap the budget" is more concise, while "put a cap on the budget" is more emphatic. The choice depends on the desired tone and context.
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
93%
Authority and reliability
4.5/5
Expert rating
Real-world application tested