- 二十四 èrshísì twenty-fourthe number twenty-four
- 二十四节气 èrshísìjiéqì the 24 solar termsThe 24 solar terms, which divide the year into equal periods based on the sun's position along the ecliptic; used in traditional Chinese calendars to guide agricultural activities and mark seasonal changes.
- 不管三七二十一 bùguǎnsānqī'èrshíyī regardless of the consequencesrecklessly; without considering the situation or the outcome.
- 二十一点 èrshíyīdiǎn blackjackA card game where players try to get as close as possible to a total of twenty-one points without going over.
- 三七二十一 sānqī'èrshíyī whatever it isthe true story of a matter; the actual situation; the facts of the case
- 二十四史 èrshísìshǐ the Twenty-Four HistoriesCollection of historical books authorized by the Qing emperor Qianlong covering the period from around 3000 BC to the 17th century; these are considered the official dynastic histories of ancient China.
- 二十八宿 èrshíbāxiù Twenty-Eight MansionsThe twenty-eight constellations of the traditional Chinese astronomical system, which are divided into four groups of seven representing the four cardinal directions.
- 二十五史 èrshíwǔshǐ Twenty-Five HistoriesA collective name for the official historical records of the Chinese dynasties, consisting of the [[二十四史|二十四史|er4 shi2 si4 shi3]] plus the [[新元史|新元史|xin1 yuan2 shi3]]
- 二十四气 èrshísìqì 24 solar termsthe twenty-four divisions of the solar year in the traditional Chinese calendar used to guide agricultural activities
- 二十四番花信风 èrshísìfānhuāxìnfēng twenty-four flower breezestraditional classification of twenty-four distinct seasonal winds from the start of spring to the start of summer, each announcing the flowering of a specific plant
- 二十四节 èrshísìjié 24 solar terms(variant form) the 24 solar terms of the traditional Chinese lunar calendar
- 二十四诗品 èrshísìshīpǐn The Twenty-Four Styles of Poetrya famous work of Chinese aesthetic theory traditionally attributed to Sikong Tu, consisting of twenty-four poems that describe different poetic styles or moods
- 二十多 èrshíduō more than twentymore than twenty; over twenty; twenty-some
- 二十年目睹之怪现状 èrshíniánmùdǔzhīguàixiànzhuàng The Strange State of the World Witnessed Over 20 YearsLate Qing dynasty novel by [[吴趼人|吳趼人|wu2 jian3 ren2]], written in 108 chapters, that exposes social corruption and dark realities witnessed by the protagonist over two decades.
- 二十郎当 èrshílángdāng twentysomethingaround twenty years of age; in one's early twenties
- 二十面体 èrshímiàntǐ icosahedrona polyhedron with twenty faces
- 全相二十四孝诗选 quánxiàng'èrshísìxiàoshīxuǎn Selected Poems on the Twenty-four Filial Exemplarsfull title of a classic text illustrated with images that recounts twenty-four stories of extreme filial piety in Chinese history
- 管他三七二十一 guǎntāsānqī'èrshíyī no matter whatto ignore everything and just do something; regardless of the consequences; who cares
- 一个钱打二十四个结 yīgeqiándǎ'èrshísìgejié stingy(proverb) to tie twenty-four knots in a single coin; used to describe someone who is extremely frugal, stingy, or miserly
- 茄二十八星瓢虫 qié'èrshíbāxīngpiáochóng 28-spotted ladybirdthe 28-spotted ladybird or hadda beetle; Henosepilachna vigintioctopunctata
- 一部二十四史，不知从何说起 yībù'èrshísìshǐbùzhīcónghéshuōqǐ long and intricate storyIt is a long and intricate story, and it is hard to know where to begin.
- 二十一世纪 èrshíyīshìjì 21st centurythe twenty-first century
- 二十一条 èrshíyītiáo Twenty-One DemandsThe list of demands presented by the Japanese Empire to the government of the Republic of China in 1915, which aimed to greatly expand Japanese control over Chinese economy and politics.
- 二十世纪 èrshíshìjì 20th centurythe period of one hundred years from 1901 to 2000
- 二十二史札记 èrshí'èrshǐzhájì Notes on the Twenty-Two HistoriesA historical work by the Qing dynasty scholar Zhao Yi that analyzes and compares the official dynastic histories of China
- 二十八星宿 èrshíbāxīngxiù twenty-eight mansionsthe twenty-eight constellations of the Chinese zodiac along the celestial equator and ecliptic
- 二十六史 èrshíliùshǐ Twenty-Six History BooksThe collective name for the [[二十五史|二十五史|er4 shi2 wu3 shi3]] and the [[清史稿|清史稿|qing1 shi3 gao3]].
- 二十四孝 èrshísìxiào the Twenty-four Filial ExemplarsClassic Confucian text from the Yuan dynasty by Guo Jujing, containing twenty-four stories that illustrate traditional values of filial piety towards parents; also known as [[全相二十四孝诗选|全相二十四孝詩選|quan2 xiang4 er4 shi2 si4 xiao4 shi1 xuan3]]
