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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
brush up on
Grammar usage guide and real-world examplesUSAGE SUMMARY
"brush up on" is correct and usable in written English.
You can use it when you want to say something like you are trying to improve your skills or knowledge on something by studying or reviewing it. For example: "I need to brush up on my Spanish before I go to Spain next month."
✓ Grammatically correct
News & Media
Academia
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
60 human-written examples
Need to brush up on classic fiction?
Academia
But brush up on your Spanish.
News & Media
In short: brush up on your catchphrases.
News & Media
Stephen Colbert better brush up on his pliés.
News & Media
Want to brush up on best practices for this?
Need to brush up on your Harvard history?
Academia
I'm definitely going to have to brush up on it".
News & Media
Need to brush up on the Yorkshire dialect?
News & Media
Time to brush up on my Shakespeare.
News & Media
Better brush up on your Fujianese?
News & Media
Better brush up on my Russian.
News & Media
Expert writing Tips
Best practice
Use "brush up on" when you want to suggest a light review rather than a deep dive into a subject. For instance, "I need to brush up on my French" implies a need for a refresher, not comprehensive study.
Common error
Avoid using "brush up on" when referring to learning something for the first time. This phrase is specifically for refreshing existing knowledge, not acquiring new information.
Source & Trust
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "brush up on" functions as an idiomatic verb phrase indicating the act of reviewing or refreshing one's knowledge or skills. As Ludwig AI confirms, it's a correct and usable phrase. The provided examples show it in use across different subjects, from languages to technical skills.
Frequent in
News & Media
33%
Wiki
28%
Academia
10%
Less common in
Formal & Business
5%
Science
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "brush up on" is a common and correct idiomatic verb phrase used to describe the act of reviewing or refreshing one's knowledge or skills. Ludwig AI validates its proper usage in various contexts, as demonstrated by numerous examples across news, academic and general sources. While versatile, remember that it's best suited for refreshing existing knowledge rather than learning something new from scratch. For alternatives, consider "review" or "refresh your knowledge" for more formal settings.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
refresh your knowledge
More formal, emphasizing renewed understanding.
review
A general term for going over material again.
sharpen your skills
Suggests making skills more precise and effective.
improve your skills
Focuses specifically on enhancing abilities.
reacquaint yourself with
Implies a prior familiarity that has faded.
polish up on
Suggests refining existing skills or knowledge.
revisit
Implies going back to something already learned.
get up to speed on
Focuses on becoming current with new information.
study up on
A more direct and informal way to say study something.
bone up on
An informal phrase for intensive studying.
FAQs
How can I use "brush up on" in a sentence?
You can use "brush up on" to indicate the need to review or refresh your knowledge or skills in a particular area. For example, "I need to brush up on my math skills before the exam."
What's a more formal alternative to "brush up on"?
For a more formal tone, consider using phrases like "refresh your knowledge" or "review". These alternatives are suitable for professional or academic contexts.
Is it correct to say "brush up at" instead of "brush up on"?
No, the correct preposition to use with "brush up" in this context is "on". Saying "brush up at" would be grammatically incorrect.
When should I use "improve your skills" instead of "brush up on"?
Use "improve your skills" when you want to emphasize making your skills better, whereas "brush up on" implies a simpler review of existing skills.
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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
82%
Authority and reliability
4.6/5
Expert rating
Real-world application tested