| 走私 | zou3 si1 | to have an illicit affair |
| 乱 | luan4 | riot |
| 暧昧 | ai4 mei4 | vague |
| 违禁 | wei2 jin4 | illicit |
| 桃色 | tao2 se4 | pink |
| 倒卖 | dao3 mai4 | to speculate |
| 私通 | si1 tong1 | amour |
| 苟且 | gou3 qie3 | careless |
| 苟合 | gou3 he2 | illicit sexual relations |
| 狗男女 | gou3 nan2 nv3 | Go |
| 不正当竞争 | bu4 zheng4 dang1 jing4 zheng1 bu4 zheng4 dang4 jing4 zheng1 | unfair competition |
| 禁止地 | jin1 zhi3 di5 | illicitly |
| 姘居 | pin1 ju1 | to cohabit with a lover in an illicit manner |