- a division of the Roman army, usually comprising 3000 to 6000 soldiers.
- a military or semimilitary unit.
- the Legion.
- any large group of armed men.
- any great number of persons or things; multitude.
- very great in number: The holy man's faithful followers were legion.
- a military unit of the ancient Roman army made up of infantry with supporting cavalry, numbering some three to six thousand men
- any large military force
- an association of ex-servicemen
- any very large number, esp of people
- very large or numerous
