- 第二天 dì'èrtiān next daythe following day; the day after a specified point in time
- 第二次 dì'èrcì second timethe second time; second; number two
- 第二轮 dì'èrlún second roundsecond round (of a match or election)
- 第二位 dì'èrwèi second place
- 第二季度 dì'èrjìdù second quartersecond quarter (of the financial year)
- 第二产业 dì'èrchǎnyè secondary industry
- 第二性 Dì'èrxìng The Second SexThe Second Sex (book by Simone de Beauvoir)
- 第二职业 dì'èrzhíyè second joba second job held in addition to one's primary employment
- 第二声 dì'èrshēng second toneThe second of the four tones in Mandarin Chinese, characterized by a rising pitch contour ([[阳平|陽平|yang2 ping2]]).
- 第二个人 dì'èrgerén second personthe second person in a sequence or counting order
- 第二次世界大战 Dì'èr Cì Shìjiè Dàzhàn World War II
- 第二次汉字简化方案 Dì'èr Cì Hànzì Jiǎnhuà Fāng'àn Second SimplificationThe second round of simplified Chinese characters proposed in 1977 and retracted in 1986, often abbreviated as [[二简|二簡|Er4 jian3]].
- 第二型糖尿病 dì'èrxíngtángniàobìng type 2 diabetesType 2 diabetes
- 第二世界 Dì'èr Shìjiè Second WorldA Cold War-era term referring to the bloc of communist nations.
- 北京第二外国语学院 Běijīng Dì'èr Wàiguóyǔ Xuéyuàn Beijing International Studies UniversityBeijing International Studies University (BISU)
- 第二岛链 Dì'èr Dǎoliàn Second Island Chain(geopolitics) Second Island Chain, strategic arc of islands stretching from Japan's Bonin Islands to Guam and Papua New Guinea
- 第二春 dì'èrchūn rebirtha new lease of life or a period of renewed success and vigor, particularly in one's career or personal development
