1. A rule concerning a rigid discipline, order, and systematization of something: Dr. Edwards told Jane that a diet was necessary for her health, and that she would have to keep up the regiment for at least two months.
2. A military unit: A regiment usually consists of two or three battalions of ground troops divided into smaller companies or troops under the command of a colonel.
3. A large number of individuals: In the big kitchen in the department store delicious meals were being prepared for the regiment of starving customers who would arrive around 12:00 for a break in shopping.
4. Etymology: "government, rule, control"; from Old French regiment, "government, rule", from Late Latin regimentum, "rule, direction"; from Latin regimen, "rule, guidance, government"; all of which came from regere, "to rule".

1. To organize and to control something in a strict manner: The parents carefully regiment the diet of their children so they can grow up healthy and strong.
2. To control the behavior of people in a very firm way: Some people criticized the way the company regimented its employees.

Mary asked, "Are they regimenting the way you do your work, too?"