共犯

1. Origins, structure, and basic meaning

• Structure: 共犯(きょうはん) refers to a person involved in a crime with others, or to that relationship.
• Basic usage: It appears when discussing the whereabouts of someone who participated with others or whether someone was involved.

2. Common pitfalls and similar expressions

• The shared involvement compared with 犯人
  • 犯人 identifies a person who committed a crime, while 共犯 highlights involvement alongside another person.
• A statement of suspicion
  • 共犯を疑われた means being suspected of being an accomplice; the sentence itself does not assert established participation.