中枢

1. Origins, structure, and basic meaning

• Structure: 中枢 (ちゅうすう) is a noun for the central part where control, decision-making, or network functions are concentrated.
• Basic usage: 中枢機能が集まる concentrates transport-control functions in a building, while 中枢として発展した describes a capital growing in the role of political and economic center.

2. Common pitfalls and similar expressions

• Concentrated function and urban role
  • 中枢機能 is a system role, whereas 中枢として is the central status held by a city. The noun does not merely mean a geometric midpoint.