control · system

1. Origins, structure, and basic meaning

• Structure: 制 has eight strokes and the on-reading せい.
• Basic usage: It appears in words for systems, rules, and restrictions, but also in creation-related compounds such as 制作.

2. Common pitfalls and similar expressions

• A system and a restriction
  • 制度(せいど) is a system for matters such as leave or resident support. 制限(せいげん) is a restriction setting permitted bounds, such as on attendance or weight.
• A creation-related compound
  • 制作(せいさく) means creating something such as a film or guidebook.