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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
rein
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "rein" is correct and usable in written English, depending on the context.
It can be used when referring to controlling or guiding something, often in a metaphorical sense, such as managing a situation or behavior. Example: "She had to rein in her emotions during the meeting to maintain professionalism."
✓ Grammatically correct
News & Media
Formal & Business
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
Teacher workloads have received government attention of late with deputy prime minister Nick Clegg vowing to rein in the "runaway train of bureaucracy" that harasses the profession.
News & Media
Nick Clegg insists he will continue to make the pro-EU case, and battle to get the Lib Dems their fair share of credit for the coalition's achievements, showing that it is credible party of government that can rein in Tory or Labour excesses, rather than one sitting on the sidelines without power.
News & Media
The disclosure bill, a complement to one pushed in the Senate last week, is the latest in a series of legislative attempts to rein in the NSA's collection and analysis of Americans' phone records and, potentially, Internet usage.
News & Media
Over the past two years, self-styled vigilante groups have sprung up across the states of Guerrero and Michoacán in response the government's apparent inability to rein in the organised crime which has turned parts of both states into killing fields.
News & Media
From a reader: "Please can you rein in the many writers who insist on dropping the word famously into their copy... as in famously overused, famously redundant or famously not really famous at all".
News & Media
When [actor and playwright] William Gillette wrote the first stage adaptation, he cabled Doyle, 'Can I marry Holmes Doylele replied, 'You may marry him, or murder, or do what you like with him.' So I feel we've got free rein".
News & Media
Congress is considering legislation to rein in the National Security Agency and Barack Obama is conducting a review.
News & Media
It was a nail-biting few days for Downing Street as it sought to manage rifts over the economy rescue package, particularly opposition from France and Germany, who argued economic stimulus should not come at the expense of regulation to rein in the excesses of the market.
News & Media
This year the oligarchs may have been expected to rein in expense as the global financial crisis bites.
News & Media
"Before the revolution, many women in our society did not wear the hijab - but were they not virtuous humans?" On the campaign trail, Rouhani vowed to rein in the morality police, an organ the president does not directly control.
News & Media
Mitch McConnell, the Senate majority leader, looked increasingly boxed in by his own refusal to rein in the federal government's bulk collection of Americans' phone records.
News & Media
Expert writing Tips
Best practice
Use "rein" to imply a degree of control or guidance, especially when referring to abstract concepts like spending, emotions, or policies. Ensure the context clearly indicates what is being controlled or restrained.
Common error
Avoid confusing "rein", which means to control or guide, with "reign", which refers to ruling as a monarch. Using the wrong word can completely change the meaning of your sentence.
Source & Trust
94%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "rein" is as a verb, meaning to control or restrain. It can also function as a noun, referring to the straps used to control a horse. Ludwig AI shows examples of "rein" being used to control abstract concepts like spending or emotions.
Frequent in
News & Media
60%
Formal & Business
25%
Science
10%
Less common in
Academia
2%
Encyclopedias
1%
Reference
2%
Ludwig's WRAP-UP
In summary, the term "rein" functions primarily as a verb or noun, signifying control, restraint, or guidance. It's grammatically sound and enjoys widespread usage across diverse contexts, notably in news and business sectors. Ludwig AI confirms that "rein" is usable in written English, depending on the context. While the term is generally safe to use, caution is advised not to confuse it with "reign". Alternative terms such as "control", "restrain" and "curb" can be used depending on the nuance you want to convey. As Ludwig AI points out, it correctly conveys the intention in various situations.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
control
Focuses on having power over something or someone.
restrain
Emphasizes holding back or limiting something's expression or movement.
curb
Suggests limiting or checking something undesirable.
check
Implies stopping or slowing down progress or action.
limit
Focuses on setting a boundary or restriction.
govern
Indicates ruling or managing with authority.
manage
Suggests overseeing and directing something effectively.
regulate
Emphasizes establishing rules or standards to control something.
subdue
Highlights bringing something under control by force or authority.
bridle
Suggests controlling or restraining, often in the context of anger or impulses.
FAQs
How to use "rein" in a sentence?
Use "rein" to indicate controlling or guiding something. For example, "The government needs to "rein in spending"." or "She had to "rein in her emotions" during the difficult conversation".
What can I say instead of "rein"?
Which is correct, "rein in" or "reign in"?
"Rein in" is correct when you mean to control or restrain something. "Reign in" is incorrect; "reign" refers to the period a monarch rules.
What's the difference between "rein in" and "hold back"?
"Rein in" implies a more active and forceful control, while "hold back" suggests a more passive form of restraint. You "rein in" something that is already in motion, while you "hold back" something from starting.
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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
94%
Authority and reliability
4.5/5
Expert rating
Real-world application tested