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
Grammar usage guide and real-world examplesUSAGE SUMMARY
"either one" is a valid and commonly used phrase in written English.
It is used when referring to two options, implying that the speaker/writer could choose either one. For example, "I can make this cake with either one of these two recipes."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(20)
tea
one or the other
one of the two
any one of the two
whichever you prefer
take your pick
it's up to you
the choice is yours
either option
both are acceptable
it makes no difference to me
one
either option A
one of two
a viable solution
a possible course of action
if one or the other
in either instance
whichever one
either guys
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
Do you read either one?
News & Media
"Either one will do fine".
News & Media
"Me, I'll take either one.
News & Media
They can do either one very seamlessly.
News & Media
You shouldn't drink either one.
News & Media
Why identify as either one?
News & Media
I could pick either one.
News & Media
Either one works well.
Wiki
You can do either one!
Wiki
You can use either one(try experimenting).
Wiki
Keep clicking on either one.
Wiki
Expert writing Tips
Best practice
When presenting two options, clearly define what "either one" refers to, ensuring the context is unambiguous.
Common error
Avoid using "either one" when more than two options are available. This can cause confusion and misinterpretation.
Source & Trust
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "either one" functions as a determiner or pronoun, indicating a choice between two specified options. Ludwig AI confirms its grammatical correctness. The examples demonstrate its use in offering alternatives or expressing indifference between two possibilities.
Frequent in
News & Media
45%
Wiki
30%
Science
10%
Less common in
Formal & Business
5%
Reference
5%
Academia
5%
Ludwig's WRAP-UP
In summary, the phrase "either one" is a grammatically correct and very common expression used to indicate a choice between two options. As Ludwig AI confirms, it functions as a determiner or pronoun, serving the purpose of presenting a selection or expressing indifference. The phrase maintains a neutral register and is frequently found in news and media, as well as wiki-based content. To ensure clarity, always define the options "either one" refers to. Avoid its use when more than two options are available to prevent confusion. The phrase is a versatile and reliable choice for expressing optionality.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
one or the other
This alternative phrase is a more formal and explicit way of saying "either one", emphasizing the mutual exclusivity of the two options.
one of the two
This highlights that a selection is being made from a specific set of two items.
any one of the two
This alternative stresses that no specific preference is placed on the selection.
whichever you prefer
This puts the choice in the hands of the listener, implying a willingness to accept their selection.
take your pick
This is a more informal way of offering a choice, suitable for casual conversation.
it's up to you
This phrase transfers the decision-making entirely to the other person.
the choice is yours
This is a slightly more formal way of saying "it's up to you", emphasizing the freedom of choice.
either option
This emphasizes that both options are viable and suitable.
both are acceptable
This highlights that there's no difference in value or suitability between the two.
it makes no difference to me
This indicates that the speaker has no preference and is indifferent to the outcome of the choice.
FAQs
How to use "either one" in a sentence?
What can I say instead of "either one"?
You can use alternatives like "one or the other", "one of the two", or "any one of the two depending on the context.
Is it grammatically correct to say "either one"?
Yes, "either one" is grammatically correct and commonly used in English to refer to a choice between two options.
What's the difference between "either one" and "both"?
"Either one" implies a choice between two options, whereas "both" refers to both options together. "You can have "either one", but not both" suggests a selection, while "You can have both" means you can have both options 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
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested