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 peak on
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a peak on" is correct and usable in written English.
It is typically used to describe a high point or summit on a mountain or other elevated object. Example sentence: As I reached the peak on the mountain, I was struck by the stunning view of the surrounding landscape.
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(2)
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
The situation reached a peak on the 17th of November 1915 with one of the largest demonstrations in Glasgow's history.
News & Media
The histology sum score reached a peak on day 7 after arthritis induction, and the extra-articular inflammation peaked on day 4 after arthritis induction.
Was it always thus? "Very much so, and it reached a peak on the Style Council.
News & Media
Fleury's frustration got progressively worse during the trip and reached a peak on Saturday.
News & Media
You kept stealing a peak on me, and kinda measured me (not literally) head to toe.
News & Media
Each separated component of the analyte appears as a peak on the chromatogram.
Encyclopedias
In the old days, most campaigns built to a peak on election day.
News & Media
The series reached a peak on Saturday, when Mr. Zorn effectively occupied the Metropolitan Museum of Art.
News & Media
She then began exploring South America for a peak on which she could make a first ascent.
Encyclopedias
This is now the name of a peak on the Mont Blanc massif where several climbers died in an avalanche on Thursday.
News & Media
Police recorded 41% more hate crimes in July 2016 than in the same month the previous year, with a peak on 1 July, records show.
News & Media
Expert writing Tips
Best practice
When describing data trends, use "a peak on" to clearly indicate the highest value or point of occurrence on a graph or timeline.
Common error
Avoid using "a peak on" to describe general improvements or successes without a quantifiable high point. Instead, use phrases like "reached its height" or "achieved maximum potential".
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a peak on" functions as a prepositional phrase, often acting as an adverbial modifier to specify the point at which something reaches its highest level or intensity. Ludwig AI confirms its correctness and usability in English. The phrase indicates location or time.
Frequent in
Science
48%
News & Media
43%
Encyclopedias
5%
Less common in
Wiki
3%
Formal & Business
1%
Reference
0%
Ludwig's WRAP-UP
In summary, "a peak on" is a prepositional phrase used to describe the highest point or maximum value of something, often in relation to a chart, timeline, or physical location. Ludwig AI confirms that it’s correct and appropriate for use in English writing. It's particularly common in scientific and news contexts, appearing frequently in sources like The New York Times and BBC. When using this phrase, ensure it aligns with quantifiable data or a specific moment of culmination to avoid misuse. Consider alternatives like "culminated on" or "reached its zenith" for a more formal tone. The abundance of examples confirms it is a versatile and useful phrase for various writing needs.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a high point on
Replaces "peak" with a more general term for a high point, maintaining the location aspect.
a summit on
Substitutes "peak" with "summit", emphasizing the highest point, often used for mountains.
a culmination on
Replaces "peak" with "culmination", focusing on the end result or climax.
the apex on
Uses "apex" instead of "peak", denoting the highest point, often in a more abstract sense.
the crest on
Employs "crest" to refer to the top of something, implying a wave-like shape or progression.
a maximum on
Replaces peak with a mathematical term for the highest value.
the acme on
Uses "acme", which signifies the point of perfection or highest achievement.
a pinnacle on
Substitutes "peak" with "pinnacle", suggesting a high, pointed feature, often architectural.
the zenith on
Replaces peak with a term that means the highest point.
a high-water mark on
Substitutes "peak" with "high-water mark", suggesting a previous maximum level.
FAQs
How can I use "a peak on" in a sentence?
Use "a peak on" to indicate the highest point on a graph, chart, mountain, or other measurable entity. For example, "The sales reached "a peak on" Black Friday."
What's the difference between ""a peak on"" and "at its peak"?
"A peak on" specifies a location or time when something reaches its highest point, while "at its peak" refers to the general state of being at the highest level, without necessarily stating where.
What can I say instead of ""a peak on"" to sound more formal?
To sound more formal, consider alternatives like "culminated on", "reached its zenith on", or "attained its maximum on" depending on the context.
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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested