legion
Legion (noun) means a large division of the ancient Roman army, typically a few thousand infantry plus cavalry support. Example: “The Roman legion advanced in tight, disciplined formation.”
How to use legion
Learner’s notesIn plain EnglishA legion is either a big division of an army, or, more loosely, any huge crowd or number of something.
When legion is used as an adjective ("his fans are legion"), it means "very numerous" — it always goes after the noun, not before it.
Trace the full origin ↓Word forms
legioned past tense, legions plural, legions singular
Fill the gap
Can you complete this real example?
The Roman _____ advanced in tight, disciplined formation.
Etymology
From Old French legion, from Latin legio, "a gathering" or "a levied army" — related to legere, "to gather" (the same root gives us legend and lecture). The everyday sense of "a huge number" comes from the Bible, where a man possessed by many spirits says "my name is Legion, for we are many."
Synonyms
View more →Related words
Rhymes for legion
Frequently asked questions
What does “legion” mean?
The word “legion” means a large division of the ancient Roman army, typically a few thousand infantry plus cavalry support. In plain terms, a legion is either a big division of an army, or, more loosely, any huge crowd or number of something.
How do you pronounce “legion”?
“Legion” is pronounced LEE-juhn (/ˈli.d͡ʒən/ in IPA).
How do you use “legion” in a sentence?
Here is “legion” used in a sentence: “The Roman legion advanced in tight, disciplined formation.”
What part of speech is “legion”?
Depending on how it is used, “legion” can be a noun and an adjective.
Where does the word “legion” come from?
The word “legion” comes from Latin.
Is “legion” a common word?
“Legion” is an uncommon word in modern English, usually learned at around the C2 level.
How many meanings does “legion” have?
“Legion” has 3 distinct senses listed in this dictionary. The most common is: a large division of the ancient Roman army, typically a few thousand infantry plus cavalry support.
What is the difference between a legion and an army?
A legion was a specific large division within the ancient Roman army, typically made up of a few thousand infantry along with cavalry support, whereas an army is the broader, general term for the entire organised military force. So a Roman army could be made up of multiple legions.
What does it mean when problems or fans are described as legion?
Used as an adjective, legion means very great in number or numerous, so saying complaints are legion means there are too many to easily count. This usage extends the original military sense of a large group into a general description of overwhelming quantity.
Is legion used as a plural or singular noun?
Legion can be used as a singular noun referring to one large group or Roman military division, but it is also used informally as a collective way to describe a large group of people or things seen as too many to count.
Featured in
Vocabulary lists that include legion: