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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
perfectly the same as
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "perfectly the same as" is correct and usable in written English.
It can be used to emphasize that two things are identical in every way. Example: "The two designs are perfectly the same as each other, with no differences whatsoever."
✓ Grammatically correct
Science
News & Media
Wiki
Alternative expressions(5)
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
1 human-written examples
The calculated de2 values of the pseudo-second-order rate equation are perfectly the same as the experimental de2 values.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
He then quotes five pages from the Recherche which give an account of the essence of matter which Arnauld knew perfectly well was not the same as the account given by Descartes.
Science
If the distribution is perfectly normal, NZ score will be the same as the Z score.
Science
To restate: identifying a set of features that perfectly separates test data is not the same as identifying a set of features that will diagnose a disease in general.
Science
To avoid lengthy health state descriptions, this health state is often termed 'full health' or 'perfect health.' Care should be taken that having no problems on any of the dimensions of the description system is not necessarily the same as being perfectly healthy.
The result is the same, as he knew perfectly well.
News & Media
A scale is perfectly targeted when the mean of the persons is the same as the mean of the items on their shared common metric.
Prince's notebook records that the grape dried "perfectly to Raisin" and that he believed his Zinfandel was the same as the "Black Sonora" he found in California.
Wiki
His first redo was the same as his original -- decent but not perfectly landed.
News & Media
We assume that the secondary users can perfectly sense available spectrums, and that the cooperative secondary users' transmit power is the same as the primary users'.
Our features director is a woman!" This era made, perfectly, Paul de Man's point that to know one is being inauthentic is not the same as being authentic.
News & Media
Expert writing Tips
Best practice
Use "perfectly the same as" to emphasize the indistinguishable nature of two items or concepts. It conveys a stronger sense of equivalence than simply saying "the same as".
Common error
While "perfectly the same as" is acceptable in many contexts, avoid overuse in highly formal or academic writing. More concise alternatives like "identical" or "equivalent" may be more appropriate.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "perfectly the same as" functions as a comparative adjective phrase, emphasizing that two or more entities are identical. Ludwig AI's analysis indicates that it's used to highlight a complete lack of difference between the subjects being compared. It's a more emphatic way of saying "the same as".
Frequent in
Science
35%
News & Media
35%
Wiki
15%
Less common in
Formal & Business
5%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "perfectly the same as" is a grammatically sound and frequently employed comparative phrase used to emphasize the complete identity of two or more things. Ludwig AI confirms its acceptability in written English. While generally neutral in register, its overuse should be avoided in highly formal contexts where more concise alternatives might be preferred. The phrase appears across various sources, including science, news and media, and wikis, showcasing its widespread use. When seeking alternatives, consider phrases such as "identical to" or "exactly the same as" for similar emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Identical to
Focuses on the aspect of complete identity, omitting the adverb "perfectly".
Exactly the same as
Replaces "perfectly" with "exactly" for emphasis.
Completely identical to
Uses "completely" to intensify "identical", providing a stronger emphasis on total equivalence.
Precisely the same as
Emphasizes the precision and exactness of the similarity.
Indistinguishable from
Highlights the inability to perceive any difference.
A carbon copy of
An idiomatic expression suggesting an exact duplicate.
Mirror image of
Implies a reversed but otherwise identical form.
Equivalent to
Focuses on functional similarity rather than exact identity.
The spitting image of
An informal, idiomatic expression indicating a very strong resemblance, particularly in appearance.
Virtually identical to
Acknowledges minor differences while maintaining a primary similarity.
FAQs
When is it appropriate to use "perfectly the same as"?
Use "perfectly the same as" when you want to emphasize that two things are not just similar, but virtually indistinguishable or identical in all relevant aspects. It's suitable for both formal and informal contexts where you want to highlight complete equivalence.
Are there more formal alternatives to "perfectly the same as"?
Yes, in formal writing, consider using alternatives such as "identical to", "equivalent to", or "indistinguishable from". These options maintain a sense of exactness while sounding more sophisticated.
Is there a difference between "exactly the same as" and "perfectly the same as"?
The phrases "exactly the same as" and "perfectly the same as" are very similar in meaning and can often be used interchangeably. "Exactly" emphasizes precision, while "perfectly" emphasizes the completeness of the similarity. The choice often depends on stylistic preference.
Can I use "perfectly the same as" when referring to abstract concepts?
Yes, "perfectly the same as" can be used to describe abstract concepts, qualities, or ideas, not just physical objects. For instance, you could say, "His opinion is perfectly the same as hers" to indicate complete agreement.
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested