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
comparison against
Grammar usage guide and real-world examplesUSAGE SUMMARY
"comparison against" is correct and usable in written English.
It means to measure one thing against something else, or to compare one thing to another. For example, "We conducted a comparison against last month's sales figures to determine our progress."
✓ Grammatically correct
Science
News & Media
Formal & Business
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
Comparison against these experimental data is good.
Science
Finally, a comparison against experimental results shows a good agreement.
"The prize money levels we are offering really do stand comparison against any races," Waterworth said.
News & Media
Reinartz, I. et al. Simulation of FRET dyes allows quantitative comparison against experimental data.
Science & Research
The numerical data have been assessed by comparison against experimental observations.
Science
Figure 18 Performance comparison against JPEG compression.
Figure 11 Performance comparison against jitter attacks.
Figure 13 shows comparison against other techniques.
Figure 12 Performance comparison against a band cropping attack.
Figure 15 Performance comparison against downsampling followed by upsampling.
Figure 20 Performance comparison against Gaussian noise addition.
Expert writing Tips
Best practice
When using "comparison against", ensure the context clearly indicates what is being compared and the basis for the comparison. Specify metrics or criteria to make the comparison more meaningful.
Common error
Avoid using "comparison against" when a simple "with" suffices. Overusing "against" can imply an adversarial relationship where none exists. Choose "comparison with" if you want to avoid implying competition between the subjects being compared.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "comparison against" primarily functions as a prepositional phrase. It's used to denote a method of evaluating something by contrasting it with another entity, standard, or baseline. Ludwig AI states that it serves "to measure one thing against something else, or to compare one thing to another."
Frequent in
Science
65%
News & Media
15%
Formal & Business
10%
Less common in
Wiki
5%
Encyclopedias
3%
Reference
2%
Ludwig's WRAP-UP
In summary, "comparison against" is a prepositional phrase used to evaluate or contrast one thing with another, often to highlight differences or assess performance relative to a standard. As Ludwig AI notes, the phrase helps "to measure one thing against something else, or to compare one thing to another." It is grammatically correct and frequently appears in scientific, news, and formal contexts. While it is widely used, being mindful of alternative phrases like "comparison with" or "in comparison to" can enhance the clarity and precision of your writing. Remember to use it when you want to emphasize a contrast or evaluation, and ensure the context provides a clear basis for the comparison.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
comparison with
Replaces "against" with "with", changing the nuance to emphasize similarity rather than opposition. Has a score of 95
in comparison to
Adds a formal tone, emphasizing a structured comparison. Has a score of 90
compared to
A shortened version of "in comparison to", maintaining a formal but concise tone. Has a score of 88
relative to
Focuses on the proportional relationship between two things. Has a score of 85
versus
Suggests a direct opposition or competition. Has a score of 82
in contrast to
Highlights differences rather than similarities. Has a score of 80
juxtaposed with
Emphasizes the act of placing two things side by side for comparison. Has a score of 78
weighing against
Indicates assessing the relative importance or influence of something. Has a score of 75
assessing against
Emphasizes evaluation based on a specific standard or criteria. Has a score of 72
evaluating with respect to
Provides a more technical or academic approach to comparison. Has a score of 70
FAQs
How can I use "comparison against" in a sentence?
You can use "comparison against" to highlight differences or evaluate something relative to a standard. For instance, "The study involved a "comparison against" existing methods".
What is a good alternative to "comparison against"?
Depending on the context, you could use alternatives like "comparison with", "in comparison to", or "compared to". Each subtly shifts the emphasis of the comparison.
When is it appropriate to use "comparison against" instead of "comparison with"?
Use "comparison against" when you want to emphasize a contrast or evaluation relative to a standard. Use "comparison with" when the goal is to highlight similarities or general relationships.
Is "comparison against" formal or informal?
"Comparison against" is suitable for both formal and informal writing, though it is often seen in scientific and technical contexts.
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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested