regiment
regiment
/ˈredʒɪmənt/
1 a large group of soldiers that is commanded by a colonel
an armoured/a cavalry/an infantry/a tank regiment
the Parachute Regiment
He enlisted in the Lancashire regiment.
2 (formal) a large number of people or things
Word Origin
late Middle English (in the sense ‘rule or government’): via Old French from late Latin regimentum ‘rule’, from regere ‘to rule’.
e.g.
I knew he was a soldier. And from the regiment number of his shoulder boards... やはり兵士か そして肩章の連帯番号… (/yupeco/『ゴールデンカムイ』4話)