noun

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

2. A combined arms major military unit featuring cavalry, infantry, and artillery

3. A large military or semi-military unit trained for combat; any military force; an army, regiment; an armed, organized and assembled militia.

Synonyms: host, mass, multitude, sea, throng

verb

1. To form into legions.

adjective

1. Numerous; vast; very great in number

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

Synonyms: multitudinous, numerous