せい
sei

Noun
Suffix

1. system; organization; organisation; imperial command; laws; regulation; control; government; suppression; restraint; holding back; establishment

その企業 きぎょう しゅう いつ 労働 ろうどう せい実施 じっしした。
sono kigyōwa shū itsuka rōdōsēo jisshi shita.
The enterprises carried the five-day workweek.