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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
24
Grammar usage guide and real-world examplesUSAGE SUMMARY
"24" is a correct and usable word in written English.
You can use it to refer to the number twenty-four, or to refer to the 24th day of a month (e.g. June 24th). For example: "I'm turning 24 tomorrow!".
✓ Grammatically correct
News & Media
Lifestyle
Sport
Alternative expressions(2)
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
45 human-written examples
Within 24 hours of this happening Katie Hopkins posted vile remarks on Twitter about how long the people of Scotland live for.
News & Media
Mr Mallon, 65, moved to quell speculation that he would be the natural successor to the Nobel prize-winning Mr Hume within 24 hours of the leader's resignation.
News & Media
Reports of his being rounded on by eurozone counterparts decrying his "amateurish" ways at a summit meeting on 24 April, appear only to have rallied support.
News & Media
He was sent to prison, where he served a sentence of 24 days, an experience that traumatised him.
News & Media
The intervening hours were filled with internal feuding and bloodletting, played out in public and in real time, like a cross between The Thick of It and 24.
News & Media
Police believe the man - a gerontophile with a predilection for elderly women - has broken into the homes of 98 pensioners in south-east London over the past 16 years, raping four of them and indecently assaulting 24.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
15 human-written examples
Your 9 5 became your 24/7, and when a family member asks how things are going work-wise you give them The Pitch and subconsciously expect constructive feedback.
News & Media
Nationally, just 16% of 18- to 24-year-olds say they are certain to vote in an election and there has been a sharp decline over the past year in registration among black and ethnic minority voters from 77% to 58%, the Hansard Society's audit reveals.
News & Media
The woman and the 30-year-old man were arrested at residential addresses in east London while the 24-year-old man was arrested at a business address in west London.
News & Media
Shares in Foxtons rose by 13%, and more than £100m of central London property was sold in a 24-hour frenzy, as estate agents worked through the night to deal with the renewed interest from wealthy buyers.
News & Media
Those wishing to prise the coveted guestbook from the hotel's grasp will have to make do with trying to decipher the autographs scrawled on the piano which sits in the 24-hour private bar.
News & Media
Expert writing Tips
Best practice
When writing about dates, use the ordinal form (e.g., "the 24th of July") rather than just the cardinal number.
Common error
Avoid using the cardinal number "24" when the ordinal "24th" is required for dates or sequences. Always use "24th" for dates.
Source & Trust
94%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "24" is that of a cardinal number, used to quantify or count. As shown in the Ludwig examples, "24" modifies nouns to express quantity or appears in dates. Ludwig AI confirms its correct usage as a number.
Frequent in
News & Media
41%
Sport
18%
Lifestyle
11%
Less common in
Formal & Business
4%
Science
4%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the query "24" functions primarily as a cardinal number, conveying precise numerical information across varied contexts. It is deemed grammatically correct and exhibits very common usage, especially within News & Media, Sport, and Lifestyle sources. Ludwig AI affirms the correctness of "24" as a number. When expressing dates or ordinal positions, the form "24th" is more appropriate. For continuous periods, phrases like "day and night" or "around the clock" serve as alternatives.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
twenty-four
Spelled-out form of the number.
two dozen
Expresses "24" as a multiple of a dozen.
the 24th
Ordinal form of the number, referring to a date.
around the clock
Describes something happening "24" hours a day.
a day
Refers to a "24"-hour period.
day and night
Emphasizes continuous activity over "24" hours.
twenty odd
Approximation around the number "24".
almost two dozen
Expresses a number close to "24", slightly less.
just under twenty-five
Emphasizes that "24" is just below twenty five.
nearly a score and a half
Archaic way to refer to number "24".
FAQs
How to use "24" in a sentence?
"24" is typically used to represent a number, age, date, or quantity. For example: "She is 24 years old", or "The event is on the 24th of June".
What can I say instead of "24 hours"?
You can use alternatives like "a day", "around the clock", or "day and night" depending on the context.
Which is correct, "24" or "24th"?
It depends on the context. Use "24" as a cardinal number (e.g., "There are 24 students"). Use "24th" as an ordinal number (e.g., "It's the 24th of December").
What does "24/7" mean?
"24/7" means "day and night" or "around the clock", signifying something that is available or happening continuously.
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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
94%
Authority and reliability
4.8/5
Expert rating
Real-world application tested