- [Rom. Antiq] A body of foot soldiers and cavalry consisting of different numbers at different periods, -- from about four thousand to about six thousand men, -- the cavalry being about one tenth.
- A military force; an army; military bands.
- A great number; a multitude."Where one sin has entered, legions will force their way through the same breach." [Rogers.]
- [Taxonomy] A group of orders inferior to a class.
Etymology: OE. legioun, OF. legion, F. légion, fr. L. legio, fr. legere to gather, collect. See Legend