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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
at
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "at" is correct and usable in written English.
It can be used to indicate a specific location, time, or point of reference. Example: "I will meet you at the coffee shop at 3 PM."
✓ Grammatically correct
News & Media
Wiki
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
At a dinner at a N.A.T.O.
News & Media
at a bar.
News & Media
Look at a map.
News & Media
I'm at a lost".
News & Media
Sitting at a desk.
News & Media
Danced at a wedding?
News & Media
"I'm at a loss".
News & Media
Blavatsky at a loom.
News & Media
At a Feb.
News & Media
At a BP station.
News & Media
At a restaurant".
News & Media
Expert writing Tips
Best practice
Use "at" to specify a precise location or time. For broader locations or timeframes, consider using "in" or "on".
Common error
Avoid using "at" for general locations like countries or large areas; "in" is more appropriate. For example, say "in Italy" not "at Italy".
Source & Trust
86%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "at" is to indicate a location or point in time. Ludwig AI highlights its use in various contexts, such as "At a dinner", "Sitting at a desk", demonstrating its function as a preposition relating nouns or pronouns to places or moments.
Frequent in
News & Media
30%
Wiki
25%
Science
15%
Less common in
Formal & Business
10%
Encyclopedias
10%
Social Media
10%
Ludwig's WRAP-UP
The preposition "at" is a fundamental element in English grammar, primarily used to denote specific locations or points in time. As Ludwig AI confirms, "at" is grammatically sound and applicable across diverse written contexts. Although the frequency of the term is currently not captured, the wide range of sources—including news outlets, wikis, and scientific publications—suggests its pervasive use. To ensure accuracy, remember to use "at" for precise locations and times, while opting for "in" or "on" for broader references. By adhering to these guidelines, you can effectively leverage "at" to improve the clarity and precision of your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
In
Indicates enclosure or containment within a space or time.
On
Specifies a surface or a particular day/date.
By
Indicates proximity or means.
Near
Expresses closeness in distance.
Around
Indicates surrounding or approximate location.
Within
Specifies being inside certain limits or boundaries.
Towards
Indicates direction or approach.
Among
Specifies being included or occurring within a group.
During
Denotes a period of time when something happens.
Throughout
Indicates extending or happening during the whole of a period.
FAQs
How do I use "at" to refer to time?
Use "at" to specify a precise time, such as "at 3 PM". For general periods, use "in" (e.g., "in the afternoon") or "on" for specific days (e.g., "on Monday").
What's the difference between using "at", "in", and "on" for locations?
"At" specifies a precise location (e.g., "at the corner"), "in" refers to enclosed spaces or areas (e.g., "in the room"), and "on" indicates a surface (e.g., "on the table").
When should I use "at" instead of alternatives like near or by?
Is it ever incorrect to use "at"?
Yes, it's incorrect to use "at" for indefinite locations or general areas. For instance, use "in Europe" rather than "at Europe". Also, avoid using "at" when "to" is more appropriate for indicating direction, such as "go to the store" instead of "go at the store".
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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
86%
Authority and reliability
4.1/5
Expert rating
Real-world application tested