Regiment meaning : A unit of armed troops under the command of an officer, and consisting of several smaller units; now specifically, usually composed of two or more battalions. Rule or governance over a person, place etc.; government, authority. The state or office of a ruler; rulership. Influence or control exercised by someone or something (especially a planet). A place under a particular rule; a kingdom or domain. A regimen. To form soldiers into a regiment. To systematize, or put in rigid order.