legions

noun

1. 1.The major unit or division of the Roman army, usually comprising 3000 to 6000 infantry soldiers and 100 to 200 cavalry troops.
2. 2.A combined arms major military unit featuring cavalry, infantry, and artillery
3. 3.A large military or semi-military unit trained for combat; any military force; an army, regiment; an armed, organized and assembled militia.
4. 4.(often Legion or the Legion) A national organization or association of former servicemen, such as the American Legion.
5. 5.A large number of people; a multitude.