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
an parallel
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "an parallel" is not correct in English; it should be "a parallel." You can use "a parallel" when referring to a similarity or comparison between two things.
Example: "There is a parallel between the two theories that cannot be ignored."
⚠ May contain grammatical issues
Science
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
6 human-written examples
Figure 6 is an parallel inverter driving simulation model established by MATLAB/Simulink.
In this perspective, affordability in children's free time can be addressed, policy-wise, through two main channels: the provision of high-quality, diverse and accessible recreational services, in the line of a universalist model; and an parallel offer of parks and playgrounds in combination with an improved access to public space at large for children.
It's like entering an parallel reality where Egyptian feline worship never went out of style.
News & Media
Stressing cultural separateness rather than the traditional integrationist model also contributes to the rise of an parallel society.
News & Media
Walter shows them archived footage of one of his 1970s experiments of a drugged up girl who says she sees shapechanging soldiers from an parallel universe that can "look like any of us".
Wiki
Toward this end, the primary kinetic isotope effect for the C8 arylation of quinoline oxide was determined in an parallel competition experiment with 1 and 2,8- d2- 1 in CH3CO2H/H2O and CD3CO2D/D2O, respectively, to exclude the influence of the H/D exchange (eq 1).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
In a parallel universe, a parallel Trump, with a slightly different approach to terror.
News & Media
Imagine it as a parallel world, a parallel life.
Wiki
You want a parallel concert, have a parallel concert.
News & Media
We moved through a parallel Paris — and a parallel Rome, Milan, and so on.
News & Media
A parallel universe?
News & Media
Expert writing Tips
Best practice
Always use the article "a" before words that start with a consonant sound, like "parallel". The correct phrase is "a parallel".
Common error
Avoid using "an" before words that begin with a consonant sound. "An" is reserved for words starting with a vowel sound. Using "a" before consonant sounds like in "a parallel" ensures grammatical correctness.
Source & Trust
84%
Authority and reliability
3.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "an parallel" is generally intended to function as a determiner followed by a noun, aiming to describe something as having a correspondence or similarity to something else. While grammatically incorrect, some examples show use in informal or creative contexts as per Ludwig.
Frequent in
News & Media
30%
Science
30%
Wiki
20%
Less common in
Encyclopedias
10%
Academia
10%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "an parallel" is grammatically incorrect; the correct form is "a parallel". It's intended to draw comparisons or highlight similarities between entities. Although some examples demonstrate its presence in varied sources, Ludwig AI suggests being mindful of its incorrectness. Therefore, it's advisable to use the grammatically correct "a parallel" or other alternatives like "a similar case" in formal writing. Usage contexts vary, appearing across news, scientific content, and wiki entries.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a parallel
Corrects the grammatical error by using the correct article 'a' instead of 'an' before the consonant sound 'p'.
a parallel situation
Specifies the type of parallel being discussed, making the meaning more concrete.
a similar case
Replaces 'parallel' with 'similar', offering a synonymous way to express resemblance.
a corresponding situation
Uses 'corresponding' to highlight a direct relationship or match between two things.
an analogous situation
Replaces 'parallel' with 'analogous', indicating a similarity in some respects between otherwise dissimilar things.
a comparative instance
Uses a more formal tone, emphasizing the act of comparing two instances.
a mirrored scenario
Employs 'mirrored' to suggest a reflection or close resemblance between two scenarios.
a related phenomenon
Highlights that the parallel is between two phenomena, implying a connection or commonality.
a connection
Offers a simpler, more general way to indicate a relationship between two things.
a link
Similar to 'connection', this phrase suggests a relationship or association.
FAQs
What is the correct way to say "an parallel"?
The correct phrasing is "a parallel". The article "a" is used before words that begin with a consonant sound.
When should I use "a" versus "an"?
Use "a" before words that start with a consonant sound (e.g., "a car", "a parallel"). Use "an" before words that start with a vowel sound (e.g., "an apple", "an hour").
What does "a parallel" mean?
The phrase "a parallel" indicates a similarity or comparison between two things. It suggests that there are notable resemblances or connections.
Are there other words to use instead of "a parallel"?
Yes, you could use phrases like "a similarity", "a comparison", or "a connection" depending on the specific 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
84%
Authority and reliability
3.5/5
Expert rating
Real-world application tested