lineage · system

1. Origins, structure, and basic meaning

• Structure: 系 has 7 strokes and expresses a connected lineage or an organized system.
• Basic usage: 系統 is read けいとう, and 体系 is read たいけい.

2. Common pitfalls and similar expressions

• Connected systems and organized frameworks
  • 電気系統の故障 means a fault in the electrical system.
  • 系統 can refer to connected working parts or a branch of a shared lineage.
  • 文法の体系を図にして整理した means organized the grammar system in a diagram.
  • 体系 refers to a whole formed by arranging related material systematically.