legion

The major unit of the Roman army consisting of 3,000 to 6,000 infantry troops and 100 to 200 cavalry troops.

A large military unit trained for combat; an army.

A large number; a multitude. synonym: multitude.

A national organization of former members of the armed forces.

Constituting a large number; multitudinous.

To enroll or form into a legion.

In Roman antiquity, a body of infantry not corresponding exactly to either the regiment or the army-corps of modern times, composed of different numbers of men at different periods, from 3,000 under the kings to over 6,000 under Marius, usually combined with a considerable proportion of cavalry.

In French history, one of numerous military bodies so called at different periods.

Any distinct military force or organization comparable to the Roman legion.

An extraordinary number; a great multitude.