01 n. A body of troops; esp. a body of troops or an army in battle array.
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1.
A body of troops; esp. a body of troops or an army in battle array.[archaic]
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2.
An infantry command of two or more companies, which is the tactical unit of the infantry, or the smallest command which is self-supporting upon the battlefield, and also the unit in which the strength of the infantry of an army is expressed.(Mil.)