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
a sharp cookie
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a sharp cookie" is not correct; the correct expression is "a smart cookie." You can use it to describe someone who is clever or intelligent, often in a context where their quick thinking or resourcefulness is being highlighted.
Example: "Even though she looks young, she's a smart cookie and knows how to handle difficult situations."
⚠ May contain grammatical issues
News & Media
Wiki
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
3 human-written examples
His saga, and the fact that he's a sharp cookie, are why we're delighted to have this Crunchies 2013 Founder Of The Year join us on the Disrupt NY stage.
News & Media
Wouldn't you feel like a sharp cookie then?
News & Media
"As she's proven, she's a rising star in the party and she's also a sharp cookie and highly able," said Charles Munger Jr., a major GOP donor.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
A very sharp cookie.
News & Media
"A ways", "gussied up", "sprog", "sharp cookie", "gobsmacked", "pinkie" – these words were just not at home in the discourse they were in.
News & Media
But whereas Ms. McKechnie exuded a heartbreaking eagerness to please, Ms. d'Amboise registers a sharp, tough cookie who is perfectly capable of looking after herself.
News & Media
Serve with a crisp cookie.
News & Media
Cut the finished product into fancy shapes with a cookie cutter or a sharp knife if you want your prawn toasts to look more refined and you don't mind wasting a few off-cuts.
Wiki
I imagine that those who are indiscreet on the Web will continue to have to make the best of it, while sharper cookies, pocketing nyms and proxy cascades (as sharper cookies already do), slouch toward an ever more Googleable future, one in which Google, to some even greater extent than it does now, helps us decide what we'll do next.
News & Media
A sharp whistle.
News & Media
They turned a sharp corner.
News & Media
Expert writing Tips
Best practice
Prefer the phrase "smart cookie" as it is the standard and grammatically correct idiom to describe someone intelligent and quick-witted. When using "a smart cookie", ensure that the context clearly indicates cleverness or intelligence.
Common error
Avoid using "sharp" when you mean "smart" in this context. "Sharp" typically refers to physical sharpness or intensity, while "smart" correctly conveys intelligence. Replace "a sharp cookie" with "a smart cookie" to ensure grammatical correctness and clarity.
Source & Trust
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase, although not grammatically correct in standard English, attempts to function as a noun phrase that describes a person. According to Ludwig AI, the correct phrase is "a smart cookie."
Frequent in
News & Media
60%
Wiki
20%
Science
10%
Less common in
Formal & Business
5%
Encyclopedias
3%
Reference
2%
Ludwig's WRAP-UP
The phrase "a sharp cookie" is an attempt to describe someone as intelligent and quick-witted. However, Ludwig AI points out that the correct idiom is "a smart cookie". While the phrase appears in some sources, it is not grammatically standard and its intended meaning is better conveyed by its grammatically correct counterpart. Using "smart cookie" ensures clarity and aligns with common English usage.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a smart cookie
Replaces "sharp" with "smart", which is the correct and commonly used idiom.
a clever person
Substitutes the idiom with a more literal and straightforward description of intelligence.
an intelligent individual
Offers a more formal and less idiomatic way to describe someone's intellect.
a bright spark
Uses a different idiomatic expression to convey the idea of intelligence and quick-wittedness.
a quick thinker
Focuses on the aspect of being able to think quickly and efficiently.
a shrewd operator
Implies someone who is not only intelligent but also skilled at getting what they want.
a wise person
Suggests someone who has not only intelligence but also good judgment and experience.
a knowledgeable person
Highlights the aspect of having a lot of knowledge and information.
an astute observer
Focuses on someone's ability to notice and understand subtle details.
a perceptive individual
Emphasizes the ability to understand and interpret things accurately.
FAQs
Is "a sharp cookie" grammatically correct?
No, the grammatically correct and widely accepted phrase is "a smart cookie". While "a sharp cookie" might be understood, it's not standard English.
What does "a smart cookie" mean?
The idiom "a smart cookie" describes someone who is intelligent, clever, and quick-witted, often in a resourceful or insightful way.
Can I use "a sharp cookie" in formal writing?
It's best to avoid using "a sharp cookie" in formal writing. Opt for more formal alternatives like "an intelligent individual" or "a clever person" to maintain a professional tone.
What can I say instead of "a sharp cookie"?
You can use "a smart cookie", "a clever person", or "an intelligent individual" depending on the context and the level of formality you're aiming for.
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
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested