legion

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

2. (military) 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.

3. (military) A large military or semi-military unit trained for combat; any military force; an army, regiment; an armed, organized and assembled militia.Examples: "Efforts to unionize were routinely met with clubbings, shootings, jailings, blacklistings and executions, perpetrated not only by well-armed legions of company goons, but also by police officers, deputies, National Guardsmen and even regular soldiers."

4. (often Legion or the Legion) A national organization or association of former servicemen, such as the American Legion.

5. (often plural) A great number.Examples: "where one Sin has entered, Legions will force their Way through the fame Breach."; "Afternoon TV mainstays like Leila Benitez and Bobby Ledesma of Darigold Jamboree gradually gave way to teenage loveteams Vi and Bot and Guy and Pip who had legions of fans watching their shows and movies and listening to their records."; "Legions of lawyers make use of codes and loopholes like the EB-5 program in the United States, whereby anyone who invests $500,000 to $1 million can gain a visa; […]"oftenplural

6. (dated, taxonomy) A group of orders inferior to a class; in scientific classification, a term occasionally used to express an assemblage of objects intermediate between an order and a class.dated