regiment, in most armies, a body of troops headed by a colonel and organized for tactical control into companies, battalions, or squadrons.

How do you write a regiment?

REGIMENT: Do not use the shorthand for these units. For example, instead of writing 1/120th Infantry, write out the full name: 1st Battalion, 120th Infantry Regiment. Always list the subordinate unit before the name of the regiment: 1st Battalion, 2nd Squadron.

What type of noun is regiment?

Use the word regiment to describe a military unit that is smaller than a division: “Geoff’s new regiment consisted of three battalions that had been based in Alabama.” Most often used as a noun to describe a military unit made up of several battalions, the word regiment can also be used as a verb.