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 this or that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'either this or that' can be used in written English.
It is used to present two alternatives which can be taken, and is usually followed by a comma or a colon. For example: 'You can choose either this or that: the book or the movie.'.
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(19)
this option or that option
this possibility or that possibility
one or the other
either alternative
either way
a choice between these options
choose one
the former or the latter
take it or leave it
two sides of the same coin
one of two things
one of two scenarios
a fork in the road
one of two possibilities
one of two options
the lesser of two evils
using either or
This one or that one
this one
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
4 human-written examples
"In this area, people are either this or that," said Mayor Robert M. Walker of Vicksburg, the first black mayor in the city's 176-year history.
News & Media
In an indirect proof, a statement and its negation (opposite) are often the only possibilities (meaning, it's either this or that).
Wiki
The First Sonata, as the writer and producer Dominique Jameux has pointed out, is built on binary oppositions that would later feature in Boulez's "open-form" works – choose either this or that.
News & Media
First, it should be noted that, whereas for theories of the satisfaction family it is hard to avoid making the prediction that presuppositions projected from attitude contexts are of the form "x believes that φ", DRT-style theories are more flexible, and can predict either this or that the presupposition is simply φ.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
"There are two possible situations one can either do this or that.
News & Media
"There are two possible situations — one can either do this or that.
News & Media
The mechanism of attention is selection: it's either this or it's that".
News & Media
"In movies we tend make things black and white: you're either this, or you're that.
News & Media
They had to be seen as the good guys, and not as either this administration or that administration".
News & Media
I think that's why I went back, and my last film Sanctity was about that, about going back and realizing I don't have to choose either this culture or that culture.
News & Media
It was either this or accept the fact that we'd stay a UK company.
News & Media
Expert writing Tips
Best practice
When using "either this or that", ensure that the two options presented are mutually exclusive or clearly distinct to avoid ambiguity.
Common error
Avoid using non-parallel grammatical structures after "either" and "or". For example, instead of saying "Either you can stay here or going home", use "Either you can stay here or you can go home."
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "either this or that" functions as a coordinating conjunction introducing two alternatives. It presents a binary choice, indicating that only one of the options is applicable or can be chosen. As Ludwig AI confirms, the structure is grammatically sound.
Frequent in
News & Media
40%
Wiki
30%
Science
30%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "either this or that" serves as a grammatically correct conjunction phrase used to present two distinct alternatives. According to Ludwig AI, it’s commonly used in writing and speech to offer a binary choice. While not overly formal, it is versatile enough for various contexts, most often appearing in News & Media, Wiki, and Scientific sources. When using this phrase, ensure the options are clearly defined and mutually exclusive to avoid confusion. Alternatives like "one or the other" or "this option or that option" can provide similar meanings with slight shifts in emphasis.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
this option or that option
More explicitly identifies the choices being presented.
this possibility or that possibility
Emphasizes the uncertainty or potential inherent in each option.
one or the other
Emphasizes the selection of a single option from two possibilities.
either alternative
Highlights that both are valid choices.
either way
Focuses on the outcome being the same regardless of the option chosen.
a choice between these options
More formal and descriptive way of presenting a selection.
choose one
A more direct command to make a selection.
the former or the latter
Refers back to previously mentioned items.
pick and choose
Implies a more discretionary selection process.
take it or leave it
Indicates a lack of flexibility regarding the options.
FAQs
How can I use "either this or that" in a sentence?
The phrase "either this or that" is used to present two alternatives. For example, "You can choose "either this or that"; the red one or the blue one."
What's a more formal alternative to "either this or that"?
For a more formal tone, you could use "one or the other" or "a choice between these options". These phrases provide a similar meaning while sounding more professional.
Is it grammatically correct to say "either this or that"?
Yes, it's grammatically correct. The phrase "either this or that" is a common construction used to present two possibilities, and can be followed by a colon or comma.
What's the difference between "either this or that" and "both this and that"?
"Either this or that" implies a choice between two options, meaning only one can be selected. "Both this and that" indicates that both options are applicable or true.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested