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.