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
which reinforce
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which reinforce" is correct and usable in written English.
It can be used to describe actions or elements that strengthen or support a particular idea, argument, or concept. Example: "The findings of the study are significant, as they provide evidence which reinforce the theory of climate change."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(6)
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 our report, we have referred to judgments which reinforce the theory of shame.
News & Media
While they live, the Lisbon sisters are observed in lots of ways, all of which reinforce their isolation.
News & Media
Colleges have reconciliation clubs, started on government advice ostensibly to combat ethnic hatred, which reinforce the new non-ethnic narrative.
News & Media
Such algorithms may create so-called filter bubbles, which reinforce a negative trend of our time – the one that leads to more polarized communities.
News & Media
"We need to think of all the aspects of hospital layouts, which reinforce 'institution' – corridors, signs, secrets, confusion – and then unpick them".
News & Media
He faulted the Labour government for policies which reinforce the Indian government's long-held view that HMG's foreign relations on the subcontinent are "skewed to Pakistan".
News & Media
However, the review also acknowledged that there needed to be "improvements to communication with patients which reinforce their right to opt out".
News & Media
The trouble is, my brain doesn't receive the same feedback messages that normal people receive from their smiles, which reinforce their happy feelings as well as relaying them.
News & Media
The text is scattered with misheard or archaic words which reinforce the uneasy sense of the past swelling into the present, of "a tide of unmentionables rising around them" (that faint note of prudish revulsion is entirely deliberate).
News & Media
"Fox criticised the Labour government for policies which reinforce the Indian government's long-held view that HMG's [Her Majesty's government's] foreign relations on the subcontinent are 'skewed to Pakistan'".
News & Media
India-Pakistan 7. (C/NF) Turning to India, Fox criticized the Labour government for policies which reinforce the Indian government's long-held view that HMG's foreign relations on the subcontinent are "skewed to Pakistan".
News & Media
Expert writing Tips
Best practice
When using "which reinforce", ensure that the clause clearly refers to a previously mentioned noun or idea. This maintains clarity and avoids ambiguity in your writing.
Common error
Avoid using "that reinforces" when "which reinforces" is more appropriate. "Which" introduces non-restrictive clauses, providing additional but non-essential information, while "that" introduces restrictive clauses that are essential to the sentence's meaning. Use "which" when the clause can be removed without changing the core meaning.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which reinforce" functions as a relative clause introducing additional, non-essential information about a preceding noun or idea. It clarifies the ways in which something supports or strengthens another element, as demonstrated by examples found by Ludwig.
Frequent in
Science
35%
News & Media
35%
Formal & Business
10%
Less common in
Wiki
5%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "which reinforce" is a commonly used and grammatically sound phrase that introduces non-restrictive clauses, adding detail about how something strengthens or supports a prior idea. Ludwig's analysis, consistent with AI feedback, reveals its frequent use across various domains, particularly in science and news media, and a neutral to formal register. When writing, ensure clarity by clearly linking the clause to its referent and avoid misusing "that" in place of "which". Alternatives like "that strengthen" and "that support" can provide simpler alternatives for expressing the same concept.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that strengthen
Replaces "which reinforce" with a simpler, more direct expression of strengthening.
that support
Substitutes "reinforce" with "support", indicating a backing or upholding action.
that bolster
Uses "bolster" instead of "reinforce", suggesting an active effort to support or encourage.
which augment
Replaces "reinforce" with "augment", indicating an increase or enhancement.
that amplify
Swaps "reinforce" for "amplify", conveying the idea of making something louder or more intense.
that validate
Uses "validate" to mean confirming or substantiating something, rather than just strengthening it.
that corroborate
Employs "corroborate" instead of "reinforce", focusing on confirming or supporting with evidence.
which underpin
Replaces "reinforce" with "underpin", highlighting the fundamental support or basis.
that buttress
Uses "buttress" to describe providing support, similar to a physical structure.
which fortify
Employs "fortify" instead of "reinforce", suggesting a strengthening to resist attack or weakening.
FAQs
How can I use "which reinforce" in a sentence?
Use "which reinforce" to add a non-essential clause that strengthens or supports a preceding idea or statement. For example: "The new regulations include several provisions, "which reinforce" the importance of environmental protection."
What can I say instead of "which reinforce"?
You can use alternatives like "that strengthen", "that support", or "that bolster" depending on the specific nuance you want to convey.
Is it correct to use "that reinforce" instead of "which reinforce"?
While both "that reinforce" and "which reinforce" can be grammatically correct, "which reinforce" is typically used for non-restrictive clauses that add extra information. "That reinforce" is used for restrictive clauses that are essential to the meaning of the sentence.
What's the difference between "which reinforce" and "which strengthen"?
Both "which reinforce" and "which strengthen" imply making something stronger. The choice depends on the specific context. "Reinforce" often suggests adding support to an existing structure, while "strengthen" can be a more general term for increasing power or resilience.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested