政界

1. Origins, structure, and basic meaning

• Structure: 政界 is read as せいかい and is a noun for the political world and the people active in it.
• Basic usage: Being in politics for a long time appears in 長く政界にいる, while moving into politics appears in 政界へ転じる.

2. Common pitfalls and similar expressions

• Membership and direction of entry
  • Use に for being in that sphere and へ for moving into it.
• Difference from 政治
  • 政界 denotes the people and sphere rather than politics as an activity or system.