Regiment (noun)

1. A military unit of ground troops consisting of several battalions.
2. An organized group of people with a particular purpose or function.

Origin:

Mid 16th century (denoting a ruler's authority over a particular area): from french régiment, from italian regimento, from reggere "to rule".

Examples:

1. The regiment was sent to the war-torn country to restore peace.
2. The marching of the regiment was a display of discipline and unity.
3. The regiment had a long and proud history of service to the country.
4. The singing group was part of a musical regiment that performed at the parade.
5. The regiment of workers was praised for their efficiency and hard work.