| 偶然HSK 5 | ǒu rán | incidentally; occasional; occasionally; by chance; randomly | |
| 偶尔HSK 4 | ǒu ěr | occasionally; once in a while; sometimes | |
| 配偶HSK 6 | pèi ǒu | consort; mate; spouse | |
| 偶像HSK 6 | ǒu xiàng | idol | |
| 偶然性 | ǒu rán xìng | chance; fortuity; serendipity |
| 1 | I only smoke occasionally. | |
| 2 | We met by chance at the train station. | |
| 3 | We occasionally go to the movies on weekends. | |
| 4 | I occasionally play cards with friends to relax. | |
| 5 | He occasionally chats with me on the phone. |