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
define something
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "define something" is correct and usable in written English. You can use it when you want to explain the meaning of a term or concept. For example, "Please define something that is often misunderstood." Alternative expressions include "explain something" and "clarify something."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
explain something
clarify something
describe something
determine something
identify something
explain
inquire about
information about
enquire about
shed light on
increase knowledge of
offer guidance on
briefed on something
educate on something
give lessons on something
instruction about
awareness about
make about
shed light on something
enlighten on something
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
48 human-written examples
They struggle, instead, to define something else.
News & Media
They are pieces that define something fundamental about his music.
News & Media
In structural engineering, the word "complex" is often employed to define something that is difficult to understand or to solve.
But it's important to define that, and define something that's a thermometer.
If you define something as unlawful, you are going to police it in the wrong way.
News & Media
New CEO Marissa Mayer will have to define something Yahoo can excel at.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
12 human-written examples
They'll re-define something that looks something like proprietary trading, and then continue to do what they're doing.
Academia
It's almost a contrived, corporate way of defining something that really should come quite naturally".
News & Media
Defining something as a global health topic doesn't make it universal.
News & Media
Well, defining something being a Fleetwood Mac song is calling it a Fleetwood Mac song, you know?
News & Media
Typically, he became obsessed with defining something abstract—What is justice?
News & Media
Expert writing Tips
Best practice
When using "define something", ensure the definition is clear, concise, and appropriate for your audience. Avoid jargon or overly technical language unless your audience is familiar with it.
Common error
Don't define a term by using the term itself or a closely related word. This creates a circular definition that doesn't provide any real understanding.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "define something" primarily functions as a verb phrase. It's used to express the action of providing a definition for a particular concept, term, or idea. As Ludwig AI also indicates, it is a grammatically correct construction.
Frequent in
News & Media
38%
Academia
21%
Science
17%
Less common in
Encyclopedias
4%
Wiki
3%
Formal & Business
3%
Ludwig's WRAP-UP
The phrase "define something" is a common and grammatically correct expression used to request or describe the act of providing a definition. As Ludwig AI confirms, the phrase is acceptable for use in written English. Its primary function is to clarify understanding, and it appears frequently in neutral contexts such as news and media, as well as more formal academic and scientific settings. While alternative phrases like "explain something" or "clarify something" can be used, "define something" offers a direct way to request a precise meaning. When using the phrase, ensure your definition is clear, concise, and avoids circular reasoning.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
explain something
Offers a general alternative, suitable when the goal is simply to make something understandable.
clarify something
Focuses on making something easier to understand by removing ambiguity.
specify something
Emphasizes making something definite and explicit, often in a technical or formal context.
determine something
Implies establishing something definitively, often after investigation or consideration.
elucidate something
Suggests making something clear by providing detailed explanation.
identify something
Highlights the act of recognizing or pointing out something specific.
characterize something
Focuses on describing the distinctive features or qualities of something.
interpret something
Involves explaining the meaning of something, often based on a particular perspective.
delineate something
Implies marking out the boundaries or limits of something clearly and precisely.
conceptualize something
Focuses on forming a mental idea or concept of something.
FAQs
How can I use "define something" in a sentence?
You can use "define something" when you want to explain the meaning or nature of a concept or term. For example, "Before we proceed, let's "define something" as fundamental as 'democracy'".
What can I say instead of "define something"?
You can use alternatives like "explain something", "clarify something", or "specify something" depending on the context.
Which is correct, "define something" or "defining something"?
"Define something" is an imperative form, used to request a definition. "Defining something" is a gerund phrase, used when the act of defining is the subject or object of a sentence. For example, "Defining something ambiguous can be challenging".
What's the difference between "define something" and "describe something"?
"Define something" aims to provide a precise meaning, while "describe something" aims to give a detailed account of its characteristics or qualities. You "define something" to establish its meaning and "describe something" to paint a picture of it.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested