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
Understand this
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Understand this" is correct and usable in written English.
It can be used to emphasize the importance of a statement or idea that follows, urging the reader to pay attention. Example: "Understand this: your actions have consequences that affect not only you but also those around you."
✓ Grammatically correct
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
58 human-written examples
"Understand this," he continues.
News & Media
Understand this.
News & Media
Understand this carefully.
Wiki
Understand this trick.
Wiki
Some countries understand this.
News & Media
Fenella doesn't understand this.
News & Media
They won't understand this".
News & Media
To understand this.
News & Media
Anyone can understand this.
News & Media
I understand this.
News & Media
"Readers understand this.
News & Media
Expert writing Tips
Best practice
Use "Understand this" to introduce a crucial piece of information that the audience needs to fully grasp the subsequent points. For example, when presenting complex data, precede the explanation with "Understand this: the correlation doesn't imply causation."
Common error
Avoid using "Understand this" excessively in casual conversation, as it can come across as condescending. Instead, opt for more conversational phrases like "Just so you know" or "It's important to realize" to maintain a friendly tone.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "Understand this" functions as an imperative, directing the listener or reader to pay close attention to the information that follows. It serves to highlight the importance of the subsequent statement, as confirmed by Ludwig AI.
Frequent in
News & Media
68%
Wiki
7%
Formal & Business
6%
Less common in
Science
6%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "Understand this" is a grammatically sound and frequently employed phrase, predominantly found in news and media contexts. It acts as an imperative, highlighting the importance of the information that follows. Ludwig AI confirms its correctness and usability across various reliable sources. While generally neutral to slightly formal, it's best to avoid overuse in highly informal settings to prevent sounding condescending. Related phrases like "take note of this" offer milder alternatives when a less direct tone is preferred.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Take note of this
Emphasizes the importance of remembering the following information.
Consider this point
Directs attention to a specific idea for thoughtful evaluation.
Bear this in mind
Advises keeping something important in one's thoughts.
Grasp this concept
Highlights the necessity of fully comprehending an idea.
Realize this fact
Stresses the importance of acknowledging a particular truth.
Recognize this truth
Focuses on accepting a given reality.
Pay attention to this
Draws focus to something needing careful observation.
Mark my words
Emphasizes the speaker's conviction about a future event.
Let me make this clear
Introduces a statement intended to remove any ambiguity.
Get this straight
Expresses the need for clear and unambiguous understanding.
FAQs
How can I use "Understand this" in a sentence?
You can use "Understand this" to emphasize a crucial point or introduce information that is essential for comprehension. For instance, "Understand this: your choices have consequences."
What is a less direct way to say "Understand this"?
Alternatives include "take note of this", "consider this point", or "bear this in mind", which can be less forceful depending on the context.
Is it grammatically correct to start a sentence with "Understand this"?
Yes, starting a sentence with "Understand this" is grammatically correct. It functions as an imperative to draw the listener or reader's attention to what follows.
What is the difference between "Understand this" and "Do you understand this"?
"Understand this" is a statement used to emphasize a point. "Do you understand this" is a question asking for confirmation of comprehension.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested