complicity
🇺🇸
/kəmˈplɪsəti/
🇬🇧
/kəmˈplɪsəti/
When you're involved in something bad with someone else, like they did something wrong and you helped them or knew about it.
The police suspected him of complicity in the robbery.
警察は彼が強盗事件に関与していると疑いています。