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
and what it does
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "and what it does" is correct and usable in written English.
You can use it when explaining the function or purpose of a subject or object previously mentioned. Example: "This software is designed to improve productivity, and what it does is streamline communication among team members."
✓ Grammatically correct
News & Media
Science
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
60 human-written examples
We also asked Trustpilot about the veracity of reviews on its site and what it does to prevent fake posts.
News & Media
And what it does is extremely clever.
News & Media
"There's something sacred about this place and what it does.
News & Media
"Does it mean I agree with Hamas and what it does?
News & Media
For iconoclasts who know what it is and what it does, no convincing is required.
News & Media
The awareness of what TD Ameritrade is and what it does varied among the cast members.
News & Media
First, they describe what the component inside is and what it does.
News & Media
And what it does is track you wherever you go online.
News & Media
Explain why this commission was set up and what it does.
News & Media
The "gap" is the difference between what a company knows and what it does.
News & Media
And the novel asks interesting questions about ageing and what it does to you.
News & Media
Expert writing Tips
Best practice
When using "and what it does", ensure the preceding clause clearly identifies the subject to avoid ambiguity. For instance, instead of "The program is complex, and what it does is…", specify: "The program is complex; and what this complexity achieves is…".
Common error
Avoid using "and what it does" when the subject isn't immediately clear. This can confuse readers. Instead of saying "It's innovative, and what it does is…", clarify: "The innovation streamlines the process, and what this streamlining achieves is…".
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "and what it does" functions as a connector and elaborator, linking a preceding statement to an explanation of the subject's action, function, or effect. This is supported by Ludwig's examples where the phrase introduces clarifications, consequences, or purposes of mentioned entities.
Frequent in
News & Media
55%
Science
25%
Formal & Business
10%
Less common in
Wiki
5%
Reference
3%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, the phrase "and what it does" is a versatile connector used to elaborate on the function, purpose, or effect of a subject. According to Ludwig, the phrase is grammatically correct and commonly used in English, particularly in news and media, science, and formal business contexts. While its register is generally neutral, being mindful of specific alternatives can enhance clarity. To maximize its impact, ensure the antecedent is clear. As Ludwig's AI confirms, this phrase is a valuable tool for enhancing comprehension and providing detailed explanations.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
and its function
Focuses specifically on the operational aspect or role.
and its purpose
Highlights the intended goal or reason for existence.
and its effect
Emphasizes the outcome or result of an action or thing.
and how it functions
Expands on the manner in which something operates.
and its operation
Refers to the practical working or process of something.
and what it achieves
Highlights the accomplishments or results obtained.
and the way it works
Focuses on the method or process by which something operates.
and its mechanism
Emphasizes the system of parts and processes within something.
and how it performs
Focuses on the execution or carrying out of a task or function.
and its practical application
Highlights the real-world use and implementation.
FAQs
How can I use "and what it does" in a sentence?
Use "and what it does" to elaborate on the function, purpose, or effect of something you've already mentioned. For example, "This software automates tasks, "and what it does" is reduce manual effort."
What are some alternatives to "and what it does"?
Alternatives include phrases like "and its function", "and its purpose", or "and its effect", depending on the specific meaning you want to convey.
Is it better to use "and what it does" or a more specific phrase?
While ""and what it does"" is versatile, using a more specific phrase like "and its primary function is" or "and the result is" can often provide greater clarity and precision.
Can "and what it does" be used in formal writing?
Yes, ""and what it does"" can be used in formal writing, but ensure the tone and context are appropriate. More formal alternatives might sometimes be preferable depending on the specific requirements of the piece.
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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested