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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
back it up
Grammar usage guide and real-world examplesUSAGE SUMMARY
"back it up" is correct and commonly used in written English.
It can be used in a variety of contexts, but it typically means to provide evidence or support for a statement or claim. Example: "The scientist claimed that their new invention could solve the world's energy crisis. However, they failed to back it up with any concrete data or experiments."
✓ Grammatically correct
News & Media
Academia
Science
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
"He could back it up.
News & Media
Still, regional data back it up.
News & Media
But some statistics back it up.
News & Media
Of course, he could back it up.
News & Media
"You need facts to back it up".
News & Media
"Back it up," her mother would say.
News & Media
I think I can back it up".
News & Media
And the numbers back it up.
News & Media
Lock it up and back it up!
The numbers back it up.
News & Media
The figures back it up.
News & Media
Expert writing Tips
Best practice
When using "back it up" in writing, ensure that you provide specific examples, data, or reasoning immediately following the claim to strengthen its credibility.
Common error
Avoid making sweeping statements and using "back it up" without including tangible support, as this can undermine your argument and make you appear less credible. Provide concrete evidence to support claims.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "back it up" functions primarily as a verb phrase used to express the action of providing evidence or support for a statement or claim. As Ludwig AI suggests, it emphasizes the need for factual backing to validate an assertion.
Frequent in
News & Media
60%
Academia
20%
Science
10%
Less common in
Formal & Business
5%
Wiki
3%
Reference
2%
Ludwig's WRAP-UP
The phrase "back it up" is a commonly used verb phrase that signifies the act of providing evidence or support for a statement or claim. Ludwig AI confirms its correctness and widespread usage across various contexts. While grammatically sound and frequently employed in news and media, as well as academic circles, it's important to consider the formality of the context. In more formal settings, alternatives like "substantiate" or "validate" might be preferable. When using "back it up", remember to provide specific examples or reasoning to strengthen the credibility of your assertions. Avoiding unsupported claims is crucial to maintain trust and ensure the persuasiveness of your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
offer proof
Directly states the presentation of evidence.
provide supporting evidence
Explicitly mentions the action of giving proof.
support with facts
Highlights the use of factual information as reinforcement.
substantiate that
Formal alternative, emphasizing factual support.
uphold the statement
Indicates defending a declaration with justification.
validate the claim
Focuses on confirming the truth of an assertion.
give credence to
Emphasizes increasing believability.
corroborate the story
Implies strengthening a narrative with independent sources.
furnish documentation
Suggests supplying official or formal records.
attest to its validity
Formally confirms something is true.
FAQs
How can I use "back it up" in a sentence?
You can use "back it up" to mean providing evidence or support for a claim. For instance, "He made a bold statement, but he couldn't back it up with any facts."
What's the difference between "back it up" and "support it"?
"Back it up" often implies providing concrete evidence or proof, while "support it" can refer to more general forms of endorsement or agreement. However, in many contexts, they are interchangeable.
What can I say instead of "back it up"?
You can use alternatives like "substantiate that", "validate the claim", or "provide supporting evidence", depending on the context.
Is it appropriate to use "back it up" in formal writing?
While "back it up" is commonly used, it can be considered slightly informal. In formal writing, using more precise and formal alternatives like "substantiate that" or "provide supporting evidence" might be more suitable.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested