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
input is
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "input is" is correct and usable in written English.
It can be used when defining or describing the nature of input in various contexts, such as programming, data analysis, or user interaction. Example: "The input is crucial for the algorithm to function correctly."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(4)
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
58 human-written examples
her input is unwarranted.
News & Media
The patient's input is essential.
News & Media
"My input is in the process.
News & Media
Of course, our input is not infallible.
News & Media
"My input is minimal in that sense.
News & Media
"My input is all touchy-feely.
News & Media
TEACHING -- The first and surely most important input is teaching.
News & Media
"Input is important, dollars are important," Mr. Ridge said.
News & Media
And in the case of California, that input is water".
News & Media
Where they have input is in the label copy.
News & Media
The input is of money, as well as time.
News & Media
Expert writing Tips
Best practice
When using "input is", ensure the context clearly defines what constitutes the "input". Be specific to avoid ambiguity.
Common error
Avoid using "input is" in vague contexts where the nature of the input is unclear. Always specify what the input consists of to maintain clarity and precision.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "input is" functions as a subject-verb construction, typically used to define, describe, or specify the nature of an input within a given system or context. According to Ludwig, this phrase is correct and usable in written English.
Frequent in
Science
42%
News & Media
39%
Formal & Business
8%
Less common in
Wiki
2%
Reference
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "input is" is a versatile and commonly used expression, primarily functioning to define or describe the nature of input within a particular context. As Ludwig AI indicates, the phrase is grammatically correct and sees frequent usage across varied domains, including science, news, and business. Usage ranges from neutral to formal, and being specific about what the "input" is will ensure clarity. Alternative phrases like ""data is"" or ""contribution is"" may be more appropriate depending on the specific meaning you want to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
data is
This alternative is suitable when referring to factual information used as a basis for reasoning, discussion, or calculation.
information is
This alternative is appropriate when referring to knowledge communicated or received.
contribution is
This alternative focuses on the act of providing something.
feedback is
This alternative is used when discussing responses or reactions to an activity or process.
factor is
This alternative is suitable when discussing a circumstance, fact, or influence that contributes to a result or outcome.
element is
This alternative highlights a component or constituent of a whole.
component is
This alternative emphasizes that something is a part of a larger whole.
submission is
This alternative refers to the act of presenting something for consideration or approval.
ingredient is
This alternative focuses on a component part of a mixture or combination.
the key is
This alternative emphasizes the most important aspect or element.
FAQs
How can I use "input is" in a sentence?
You can use "input is" to define or describe the nature of an input in various contexts. For example, "The "data is" crucial for the algorithm to function correctly."
What's a more formal alternative to "input is"?
In formal contexts, consider using alternatives like "the "contribution is" significant" or "the "information is" essential" to maintain a professional tone.
When should I use "data is" instead of "input is"?
Use ""data is"" when referring to factual information, especially in technical or analytical contexts. "Input is" is more general and can refer to any form of entry or contribution.
Is it correct to say "inputs are" instead of "input is"?
Yes, "inputs are" is correct when referring to multiple inputs. For example, "The inputs are processed simultaneously." The singular form, "input is", is used when referring to a single, collective input.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested