1. Mil.a unit of ground forces, consisting of two or more battalions or battle groups, a headquarters unit, and certain supporting units.
1. to manage or treat in a rigid, uniform manner; subject to strict discipline.
2. to form into a regiment or regiments.
3. to assign to a regiment or group.
4. to form into an organized group, usually for the purpose of rigid or complete control.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.