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
either one is
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "either one is" is correct and usable in written English.
It can be used when discussing two options or alternatives, indicating that either of them is acceptable or valid. Example: "In this case, either one is suitable for the project requirements."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(3)
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
So either one is stuck with a vicious explanatory regress or else one gives up Kant's claim to philosophical originality.
Science
"Either one is fine with me.
News & Media
It wasn't saying either one is better.
News & Media
A yes to either one is enough to keep them".
News & Media
It's not as if either one is an inspiring orator.
News & Media
"Either one is O.K., but you need a reason".
News & Media
"I'm not saying either one is leading right now; it's pretty neck and neck".
News & Media
But, either one is a sign of pressure for change from below.
News & Media
There is no indication that either one is a subject of the investigation.
News & Media
People have often compared network television to sausage, in that nobody would want to see how either one is made.
News & Media
A baby basset hound admits, "I've got something on my mind and something in my mouth/ And I don't know what either one is".
News & Media
Expert writing Tips
Best practice
When using "either one is", ensure the context clearly presents two distinct options. This avoids ambiguity and strengthens the clarity of your statement.
Common error
Avoid using "either one is" when more than two options are available. The phrase is specifically designed for scenarios involving a binary choice.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "either one is" functions as a determiner phrase used to indicate that either of two options or choices is acceptable or valid. It sets up a binary condition where the selection of either option leads to a satisfactory outcome. This is validated by the examples provided by Ludwig.
Frequent in
News & Media
60%
Wiki
20%
Science
10%
Less common in
Formal & Business
5%
Reference
3%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, the phrase "either one is" is a versatile and frequently used expression to denote that two options are equally acceptable. As Ludwig AI confirms, it is grammatically correct and applicable across various contexts, especially in News & Media. While maintaining a neutral register, its primary function is to convey equivalence or indifference. When using this phrase, ensure that only two clear choices are presented to avoid confusion. Consider alternatives like "both are acceptable" or "either choice works" to add variety to your writing. The high expert rating confirms its reliability and widespread acceptance in English communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
either one will do
Implies that either option is acceptable and will achieve the desired result.
both are fine
Indicates that either option is satisfactory or meets a basic requirement.
both are acceptable
Emphasizes that both options meet the required criteria or are permissible.
each is suitable
Highlights the suitability of each option for a specific purpose.
both alternatives are good
Indicates that both options are beneficial or advantageous.
either choice works
Focuses on the functionality and effectiveness of each choice.
either selection is valid
Highlights the legitimacy and correctness of each selection.
both are equal
Emphasizes the equivalence in value, quality, or effect of the two options.
either option suffices
Emphasizes that each option is adequate to fulfill a need or requirement.
each is adequate
Focuses on the sufficiency of each option for a particular task.
FAQs
How to use "either one is" in a sentence?
Use "either one is" to indicate that two options are equally acceptable or valid. For example, "You can choose the red shirt or the blue shirt; "either one is" fine with me".
What can I say instead of "either one is"?
You can use alternatives like "both are acceptable", "each is suitable", or "either choice works" depending on the context.
Which is correct, "either one is" or "either is"?
While "either is" can be grammatically correct, ""either one is"" is often used to emphasize that you're considering two specific items or options.
What's the difference between "either one is" and "both are"?
"Either one is" implies that only one of the two options will be chosen or is necessary, whereas "both are" indicates that both options are valid or applicable simultaneously.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested