legion

/ˈliː.d͡ʒən/

Proposed by a contributor, not yet supported by evidence.

Also seen as: legions · legioning · legioned

Sense 1

Meaning · English

Numerous; vast; very great in number.

Adjective

Examples

Russia’s labor and capital resources are woefully inadequate to overcome the state’s needs and vulnerabilities, which are legion.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 2

Meaning · English

The major unit or division of the Roman army, usually comprising 3000 to 6000 infantry soldiers and 100 to 200 cavalry troops.

Noun

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 3

Meaning · English

A combined arms major military unit featuring cavalry, infantry, and artillery, including historical units such as the British Legion, and present-day units such as the Spanish Legion and the French Foreign Legion.

Noun

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 4

Meaning · English

To form into legions.

Verb

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Common questions

What does “legion” mean?

Numerous; vast; very great in number.

Is “legion” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.