投獄

1. Origins, structure, and basic meaning

• Structure: 投獄(とうごく) is a noun for putting a person in prison.
• Basic usage: The affected person appears in 疑いで投獄される, while an order takes the form 投獄を命じる.

2. Common pitfalls and similar expressions

• Active and passive
  • 投獄する describes imprisoning someone, while 投獄される describes being imprisoned.
• Suspicion and action
  • 反逆の疑いで gives the suspicion connected with the imprisonment; 投獄 itself names confinement in prison.