WordWeb Online

1. Association of ex-servicemen
   "the American Legion"
    
2. A large military unit
   "the French Foreign Legion"
    
3. A vast multitude
   - horde, host
    
4. [archaic] Army
   - host [archaic]

1. Amounting to a large indefinite number
   "Palomar's fans are legion"
   - numerous

Derived forms: legions

See also: many

Type of: army, association, concourse, force, ground forces, military force, military group, military unit, multitude, regular army, throng

Encyclopedia: Legion