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
In sum
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "In sum" is correct and usable in written English.
It is typically used to summarize or conclude a discussion or argument, indicating that what follows is a brief recap of the main points. Example: "In sum, the research indicates that regular exercise significantly improves mental health and overall well-being."
✓ Grammatically correct
News & Media
Encyclopedias
Science
Alternative expressions(20)
is equivalent to
in the wishes of
rapidly thereafter
for the immediate future
Very soon
somewhere later
one week before
at the early time
in the next weeks
it is important to remember
during the previous years
to avoid disruption
not yet completed
in accordance with direction from
a couple of books before
if not soon
as excellent as
in a flash
as instructed by the directive
as tall as
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
59 human-written examples
In sum: 1.
News & Media
In sum, weep not.
News & Media
In sum, "Sitting pretty are the boys".
News & Media
In sum, these people deserved no mercy.
News & Media
In sum, he trusted people to create.
News & Media
In sum, slow but steady progress.
News & Media
In sum, his traits reflect theirs.
Encyclopedias
In sum, two problems stand out.
News & Media
In sum, Mr Assad still looks doomed.
News & Media
In sum, Ravitch highlights a core tension.
News & Media
In sum, she sounds a perfect Democrat.
News & Media
Expert writing Tips
Best practice
Use "In sum" to clearly signal the beginning of a concluding summary, ensuring your audience understands you're about to recap key points.
Common error
Avoid starting multiple consecutive paragraphs with "In sum". Vary your summarizing phrases to maintain reader engagement.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary function of "In sum" is to serve as an adverbial phrase. It modifies the sentence by indicating that what follows is a summary or concise conclusion of previously stated information. Ludwig AI examples show this phrase used to encapsulate arguments, findings, or situations.
Frequent in
News & Media
75%
Encyclopedias
10%
Science
5%
Less common in
Formal & Business
3%
Academia
3%
Wiki
2%
Ludwig's WRAP-UP
"In sum" is a versatile adverbial phrase effectively used to introduce a summary or conclusion. Ludwig AI confirms its grammatical correctness and widespread use in varied contexts, particularly in news and media. While suitable for formal and professional settings, it maintains a neutral tone. To enhance writing, remember to use "In sum" strategically to signal a clear conclusion and avoid overuse to maintain reader engagement. Consider alternatives like "to summarize" or "in conclusion" for stylistic variety.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
To summarize
This alternative is a direct and widely understood way to indicate a concise recap of the main points.
In conclusion
This option provides a formal tone, signaling the end of an argument or discussion with a summary.
Briefly stated
This highlights the intent to be succinct and to the point in the summary.
To put it briefly
This emphasizes brevity and conciseness in conveying the main idea.
In short
This suggests a quick and concise summary, ideal for capturing the essence of a topic.
In essence
This captures the fundamental nature or core meaning of what has been discussed.
In a nutshell
This idiom suggests a very compact and simplified summary.
Overall
This provides a general summation or overview of the key aspects.
All in all
This indicates a comprehensive consideration leading to a final assessment.
Summing up
This is a more active way to describe the process of summarizing.
FAQs
How can I use "In sum" in a sentence?
"In sum" is typically used at the beginning of a sentence to introduce a summary or conclusion. For example, "In sum, the experiment confirmed our initial hypothesis."
What are some alternatives to "In sum"?
You can use alternatives such as "to summarize", "in conclusion", or "in short" depending on the desired level of formality.
Is it appropriate to use "In sum" in formal writing?
Yes, "In sum" is appropriate for formal writing, though phrases like "in conclusion" may be preferred in very formal academic contexts.
What is the difference between "In sum" and "to summarize"?
While both introduce a summary, "In sum" acts as a concise transition into the recap, whereas "to summarize" more directly indicates the act of summarizing.
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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested