- 双重国籍 shuāngchóngguójí dual citizenshipdual nationality; refers to the status of a person who is simultaneously a citizen of two different countries
- 双重标准 shuāngchóngbiāozhǔn double standarda set of principles that allows more freedom to one person or group than to another; using two different sets of rules for the same situation
- 双重母音 shuāngchóngmǔyīn diphthongtwo vowel sounds joined in one syllable to form a single sound
- 双重身分 shuāngchóngshēnfèn dual identityThe state of a person having two different roles or identities at the same time
- 双重性 shuāngchóngxìng dual naturedual nature; the quality of being dual or having two parts; dualism
- 双重人格 shuāngchóngréngé dual personality(derogatory) used to describe someone who possesses two opposing sets of character traits, attitudes, or moral standards