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
let's define
Grammar usage guide and real-world examplesUSAGE SUMMARY
'let's define' is a correct and usable phrase in written English.
You can use it to suggest a definition for a particular concept or word. For example, "Let's define what we mean by 'social justice'".
✓ Grammatically correct
News & Media
Science
Alternative expressions(1)
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
"Let's define distraction," Fisher said.
News & Media
Let's define Ψ a m a n represent the pattern of a pair of amino acids, that is, amino acid a m followed by amino acid an.
Science
REMNICK: Let's define what identity politics is, because it's a phrase that's used now in all sorts of ways.
News & Media
Let's define our terms.
News & Media
First, let's define the problem.
News & Media
First, let's define our terms.
News & Media
Transformation First, let's define transformation.
News & Media
Digital Next let's define digital.
News & Media
1. Let's define admin costs.
News & Media
But first, let's define photography.
News & Media
"Let's define the scope of the problem".
News & Media
Expert writing Tips
Best practice
Before using "let's define" in academic writing, consider if a formal definition is required or if a simple explanation suffices.
Common error
Avoid using "let's define" and then providing a vague or circular definition. Ensure the definition adds clarity and substance to the discussion.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "let's define" functions as an introductory phrase used to propose a definition for a term or concept. Ludwig examples show it's often used to ensure clarity and common understanding. The phrase sets the stage for a subsequent explanation or clarification.
Frequent in
News & Media
68%
Science
21%
Formal & Business
3%
Less common in
Encyclopedias
2%
Wiki
1%
Academia
5%
Ludwig's WRAP-UP
The phrase "let's define" is a common and grammatically sound way to introduce a definition. Ludwig AI confirms its correctness and usability across a wide range of contexts. Its prevalence in news media and scientific literature underscores its utility in fostering clear communication. When writing, ensure the definition you provide is concise and relevant. Alternatives such as "allow me to define" or "we should define" can be used to add nuance or formality. By following these guidelines, you can effectively use "let's define" to enhance the clarity and precision of your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
we should define
Suggests a collective need to establish a clear definition.
it is important to define
Emphasizes the necessity of defining something.
to clarify, let's establish
Indicates that the definition aims to provide clarity.
allow me to define
Adds a personal touch, indicating the speaker's willingness to clarify.
to be precise, let's set out
Emphasizes the need for accuracy in the definition.
permit us to define
More formal and polite way of offering a definition.
for clarity's sake, let's elucidate
Highlights the importance of making something clear and understandable.
for the purpose of this discussion, let's say
Specifies that the definition is limited to a particular context.
for the sake of understanding, let's outline
Focuses on building a basic framework for comprehension.
first, we must consider the meaning of
Positions the definition as the initial step in a broader analysis.
FAQs
How do I use "let's define" in a sentence?
Use "let's define" to introduce a specific meaning for a term or concept, ensuring clarity in your communication. For example, "Let's define success as achieving personal fulfillment and professional goals."
What are some alternatives to using "let's define"?
You can use alternatives like "allow me to define", "we should define", or "it is important to define" depending on the context.
When is it appropriate to use "let's define" in writing?
It's appropriate to use "let's define" when introducing a term or concept that might be unfamiliar to your audience or when clarifying a term that has multiple interpretations.
What's the difference between "let's define" and "we should consider the meaning of"?
"Let's define" is a direct suggestion to establish a clear definition. "We should consider the meaning of" is a broader invitation to explore the significance and implications of a term. The former is more concise and actionable.
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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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested