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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
legion
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "legion" is correct and usable in written English.
It can be used to describe a large number of people or things, often implying that they are numerous or widespread. Example: "The challenges we face are legion, but we will overcome them together."
✓ Grammatically correct
News & Media
Formal & Business
Alternative expressions(10)
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
53 human-written examples
What luck, then, to find the toweringly meritorious figure of Thomas Piketty, the French economist, encapsulating the objections in his rejection of the of the Legion d'Honneur.
News & Media
A Gang of Nine going after John Boehner is as terrifying as when the Legion of Doom tried to take over the world in a Superfriends episode.
News & Media
The traps that might open up are legion.
News & Media
Last month, Preibus and a handful of top lieutenants carefully telegraphed the findings of a new report wherein the party's legion political liabilities were diagnosed.
News & Media
Born in 1910, abandoned and brought up by the state, homosexual, imprisoned for thieving at 16, sent out to join the foreign legion at 18, then imprisoned for petty crime repeatedly in the 1940s, he had at the same time produced the masterpieces that attracted the attention and solidarity of Cocteau, Sartre and André Breton.
News & Media
Griffin purists and experts (believe me they are legion, as I, a novice, discovered after writing a book about Canberra) still regard the initial decision to place the George V monument on the land axis as some sort of heresy.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
7 human-written examples
And so many of the cultural affiliations of military life – regiments, the Royal British Legion, the commanders-in-chief – are intimately bound up with the historic Protestant and imperial attributes of the British royal family.
News & Media
There was no precise time I became a thief, just a metempsychosis of Uranus that saw me graduate from the Reformatory to the Foreign Legion and thence to the piss and shit of the sewers.
News & Media
Confronted by the Sunday Times, Kiszley insisted he "always kept my role as national president of the Royal British Legion completely separate from my business interests".
News & Media
Addressing the American Legion in Reno, Nevada, Bush said: "Iran's active pursuit of technology that could lead to nuclear weapons threatens to put a region already known for instability and violence under the shadow of a nuclear holocaust".
News & Media
After his death, the Royal British Legion said Jordan's decision to go to France highlighted "the spirit that epitomises the second world war generation".
News & Media
Expert writing Tips
Best practice
Consider the connotations of "legion". While it can simply mean 'many', it often carries a sense of imposing size or organized force.
Common error
Avoid using "legion" when a simpler word like "many" or "numerous" would suffice, especially in informal writing. Overusing it can make your writing sound pretentious or overly dramatic.
Source & Trust
91%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "legion" is as a noun, referring to a large military unit or a vast number of people. It can also function as an adjective, meaning numerous. Ludwig examples show its versatility in different sentence structures.
Frequent in
News & Media
60%
Formal & Business
20%
Science
10%
Less common in
Encyclopedias
3%
Wiki
3%
Reference
2%
Ludwig's WRAP-UP
In summary, "legion" is a versatile term that functions as both a noun and an adjective, denoting a large number or, historically, a Roman military unit. As Ludwig AI highlights, it is grammatically correct and usable in various contexts. While "legion" is commonly found in news and formal writing, writers should use it judiciously to avoid sounding pretentious. Alternatives such as "numerous" or "a multitude" may be more appropriate in informal settings. The phrase's authoritative sourcing and frequent usage underscore its reliability and acceptance in modern English.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
numerous
Directly expresses a large quantity, without the historical or figurative weight of "legion".
a multitude
This phrase, like "legion", refers to a large number of things or people, but doesn't carry the military connotation.
countless
Emphasizes the inability to count the items in question, a slightly different focus than the large but finite sense of "legion".
innumerable
Similar to "countless", indicating a quantity too great to be counted; "legion" can imply a known, if large, number.
a great number
Similar to "legion" in denoting quantity, but more general and lacks the specific historical or organizational associations.
myriad
This word signifies a vast and varied number, but without the historical or military implications of "legion".
an army of
This phrase often implies a large group working towards a common goal, where "legion" can be simply a large number.
a host
This term suggests a large assembly, but is often used in a more celebratory or welcoming context than "legion".
a sea of
This is a metaphor for a large expanse or quantity, lacking the organizational connotations of "legion".
a throng
Implies a dense crowd of people, lacking the structured or organized aspect sometimes associated with "legion".
FAQs
How can I use "legion" in a sentence?
You can use "legion" to describe a large number of things or people, such as "The problems facing the company are legion" or "A legion of volunteers helped with the event".
What words can I use instead of "legion"?
Alternatives to "legion" include "numerous", "a multitude", "countless", and "myriad" depending on the context.
Is it correct to say "problems are legion"?
Yes, it is grammatically correct. "Legion" can function as a predicate adjective, meaning numerous or abundant. Ludwig AI confirms that it follows standard grammar rules.
What is the difference between "legion" and "battalion"?
"Legion" refers to a large military unit (historically Roman) or a vast number, while "battalion" specifically denotes a military unit typically composed of several companies.
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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
91%
Authority and reliability
4.6/5
Expert rating
Real-world application tested