| sān | three/3 |
| 三 | three 3 |
| 三K党 | KKK; Klan; Ku Klux Klan |
| 三…四 | expressing confusion |
| 三一三十一 | equally shared among three parties. |
| 三一节 | (Sunday after Pentecost) Trinity Sunday |
| 三七 | Panax pseudo-ginseng var. notoginseng |
| 三七开 | ratio seventy to thirty thirty percent failure, seventy percent success |
| 三七开定论 | thirty percent failure, seventy percent success, the official PRC verdict on Mao Zedong |
| 三三两两 | in twos and threes |
| 三下五除二 | neat and quick |
| 三不 | the three no's (abbreviated catchphrase) |
| 三不知 | to know nothing about the beginning, the middle or the end to know nothing at all |
| 三不管 | come within nobody's jurisdiction |
| 三世 | the Third (of named Kings) |
| 三个一组 | triune; triplet; triple; tern; triad; trine; triangle; trifold; plicity trine; trio; triplicity |
| 三个世界 | three worlds, i.e. Western capitalism, Soviet communism and the non-aligned countries |
| 三个代表 | the Three Represents enunciated by Jiang Zemin 江澤民|江泽民 as the duty of the Chinese Communist party in 2001, namely: to represent productivity of an advanced society, forward progress of advanced culture and the fundamental interests of the people |
| 三个和尚没水喝 | Everybody's business is nobody's business. |
| 三个女人一个墟 | three women makes a crowd |
| 三个女人一台戏 | three women are enough for a drama (idiom) |