二 ji⁶ {èr}

1. two
2. 2
3. (Beijing dialect) stupid

二百 ji⁶ baak³ {èr bǎi}

two hundred

二千 ji⁶ cin¹ {èr qiān}

two thousand

二偈 ji⁶ gai⁶ {èr jì}

A type of chinese poem

二毫 ji⁶ hou⁴ {èr háo}

twenty cents

二日 ji⁶ jat⁶ {èr rì}

two days; second [date]

二叔 ji⁶ suk¹ {èr shú}

Second elder uncle

二八 ji⁶ baat³ {èr bā}

1. 16
2. sixteen

二屄 ji⁶ bei¹ {èr bī}

1. (slang) idiot
2. idiotic

二便 ji⁶ bin⁶ {èr biàn}

urination and defecation

二寶〔-宝〕 ji⁶ bou² {èr bǎo}

1. second child
2. second baby

二次 ji⁶ ci³ {èr cì}

1. second (i.e. number two)
2. second time
3. twice
4. (math.) quadratic (of degree two)

二重 ji⁶ cung⁴ {èr chóng}

1. double
2. repeated twice

二等 ji⁶ dang² {èr děng}

1. second class
2. second-rate

二代 ji⁶ doi⁶ {èr dài}

1. secondary
2. twice in the year (of generations of insects, harvests etc)

二道 ji⁶ dou⁶ {Èr dào}

Erdao district of Changchun city 長春市, Jilin

二度 ji⁶ dou⁶ {èr dù}

second degree

二婚 ji⁶ fan¹ {èr hūn}

1. to marry for the second time
2. second marriage
3. second spouse

二分 ji⁶ fan⁶ {èr fēn}

1. second part
2. the equinox

二房 ji⁶ fong⁴ {èr fáng}

1. second branch of an extended family
2. concubine

二副 ji⁶ fu³ {èr fù}

1. second officer (of ship)
2. second mate

二價〔-价〕 ji⁶ gaa³ {èr jià}

negotiable price

二階〔-阶〕 ji⁶ gaai¹ {èr jiē}

1. second order
2. quadratic (math.)

二簡〔-简〕 ji⁶ gaan² {èr jiǎn}

abbr. for 第二次漢字簡化方案

二更 ji⁶ gaang¹ {èr gēng}

second of the five night watch periods 21:00-23:00 (old)

二甲 ji⁶ gaap³ {èr jiǎ}

2nd rank of candidates who passed the imperial examination (i.e. 4th place and up)

二哥 ji⁶ go¹ {èr gē}

second brother

二號〔-号〕 ji⁶ hou⁶ {èr hào}

2nd day of the month

二元 ji⁶ jyun⁴ {èr yuán}

1. two yuan
2. two dollars
3. binary

二月 ji⁶ jyut⁶ {Èr yuè}

1. February
2. second month (of the lunar year)

二級〔-级〕 ji⁶ kap¹ {èr jí}

1. grade 2
2. second class
3. category B

二林 ji⁶ lam⁴ {Èr lín}

Erhlin town in Changhua county 彰化縣, Taiwan

二流 ji⁶ lau⁴ {èr liú}

1. second-rate
2. second-tier

二輪〔-轮〕 ji⁶ leon⁴ {èr lún}

second round (of a match or election)

二崙〔-仑〕 ji⁶ leon⁴ {Èr lún}

Erlun or Erhlun township in Yunlin county 雲林縣, Taiwan

二連〔-连〕 ji⁶ lin⁴ {Èr lián}

Erlian basin in Inner Mongolia

二來〔-来〕 ji⁶ loi⁴ {èr lái}

1. in the second place
2. secondly

二老 ji⁶ lou⁵ {èr lǎo}

1. mother and father
2. parents

二奶 ji⁶ naai¹ {èr nǎi}

1. mistress
2. second wife
3. lover

二世 ji⁶ sai³ {èr shì}

1. the Second (of numbered kings)
2. second generation (e.g. Chinese Americans)

二心 ji⁶ sam¹ {èr xīn}

1. disloyalty
2. half-heartedness
3. duplicity

二十 ji⁶ sap⁶ {èr shí}

1. twenty
2. 20

二手 ji⁶ sau² {èr shǒu}

1. indirectly acquired
2. second-hand (information, equipment etc)
3. assistant

二水 ji⁶ seoi² {Èr shuǐ}

Erhshui township in Changhua county 彰化縣, Taiwan

二醇 ji⁶ seon⁴ {èr chún}

glycol

二聲〔-声〕 ji⁶ sing¹ {èr shēng}

second tone

二胎 ji⁶ toi¹ {èr tāi}

second pregnancy

二糖 ji⁶ tong⁴ {èr táng}

disaccharide

二話〔-话〕 ji⁶ waa⁶ {èr huà}

1. objection
2. differing opinion

二維〔-维〕 ji⁶ wai⁴ {èr wéi}

two-dimensional

二黃〔-黄〕 ji⁶ wong⁴ {èr huáng}

1. one of the two chief types of music in Chinese opera
2. Peking opera
3. see also 西皮

二胡 ji⁶ wu² {èr hú}

1. erhu (Chinese 2-string fiddle)
2. alto fiddle
3. CL: 把

二側〔-侧〕 ji⁶ zak¹ {èr cè}

two sides

二者 ji⁶ ze² {èr zhě}

1. both
2. both of them
3. neither

二進〔-进〕 ji⁶ zeon³ {èr jìn}

binary (math)

二戰〔-战〕 ji⁶ zin³ {Èr zhàn}

World War II

二傳手〔-传-〕 ji⁶ cyun⁴ sau² {èr chuán shǒu}

setter; tosser (volleyball)

二打六 ji⁶ daa² luk⁶ {èr dǎ liù}

(noun) a flunky; an extra in a movie

二點鐘〔-点钟〕 ji⁶ dim² zung¹ {èr diǎn zhōng}

Two o'clock

二花面 ji⁶ faa¹ min⁶ {èr huā miàn}

a type of character in Chinese opera

二奶仔 ji⁶ naai zai² {èr nǎi zǐ}

1. mistress 2. one who does not get treated equally or discriminated

二奶命 ji⁶ naai¹ meng⁶ {èr nǎi mìng}

one's destined to be second-in-line, like a concubine

二五仔 ji⁶ ng⁵ zai² {èr wǔ zǐ}

(noun) a traitor; a snitch; an informant; a mole; betrayer

二撇雞〔--鸡〕 ji⁶ pit³ gai¹ {èr piē jī}

thin moustache resembling the two-stroke Chinese character 八

二世祖 ji⁶ sai³ zou² {èr Shì zǔ}

(noun) a trust fund baby

二十一 ji⁶ sap⁶ jat¹ {èr shí yī}

twenty one

二十日 ji⁶ sap⁶ jat⁶ {èr shí rì}

twenty days; twentieth [date]

二十二 ji⁶ sap⁶ ji⁶ {èr shí èr}

twenty two

二叔公 ji⁶ suk¹ gung¹ {èr shū gōng}

Second elder uncle

二叔婆 ji⁶ suk¹ po⁴ {èr shū pó}

grandfather's second younger brother's wife

二進位〔-进-〕 ji⁶ zeon³ wai² {èr jìn wèi}

Binary

二仔底 ji⁶ zi² dai² {èr zǐ dǐ}

1. someone who is shameless and clingy 2. one who is incapable, not prepared

二阿姨 ji⁶ aa³ ji¹ {èr ā yí}

auntie, second eldest of sisters in mother's family

二把刀 ji⁶ baa² dou¹ {èr bǎ dāo}

1. inexpert
2. a botcher

二把手 ji⁶ baa² sau² {èr bǎ shǒu}

1. deputy leader
2. the second-in-command

二百五 ji⁶ baak³ ng⁵ {èr bǎi wǔ}

1. idiot
2. stupid person
3. a dope

二部制 ji⁶ bou⁶ zai³ {èr bù zhì}

two shift system (in schools)

二叉樹〔--树〕 ji⁶ caa¹ syu⁶ {èr chā shù}

binary tree

二茬罪 ji⁶ caa⁴ zeoi⁶ {èr chá zuì}

to suffer second persecution

二產婦〔-产妇〕 ji⁶ caan² fu⁵ {èr chǎn fù}

lady who has given birth twice

二七區〔--区〕 ji⁶ cat¹ keoi¹ {Èr qī Qū}

Erqi District of Zhengzhou City 鄭州市, Henan

二次方 ji⁶ ci³ fong¹ {èr cì fāng}

square (i.e. x times x)

二次型 ji⁶ ci³ jing⁴ {èr cì xíng}

quadratic form (math.)

二次曲 ji⁶ ci³ kuk¹ {èr cì qū}

1. quadratic curve
2. conic section (geometry)

二重唱 ji⁶ cung⁴ coeng³ {èr chóng chàng}

duet

二重根 ji⁶ cung⁴ gan¹ {èr chóng gēn}

a double root of an equation

二重性 ji⁶ cung⁴ sing³ {èr chóng xìng}

1. dualism
2. two sided
3. double nature

二重奏 ji⁶ cung⁴ zau³ {èr chóng zòu}

duet (in music)

二等車〔--车〕 ji⁶ dang² ce¹ {èr děng chē}

second class

二等艙〔--舱〕 ji⁶ dang² cong¹ {èr děng cāng}

second class cabin

二地主 ji⁶ dei⁶ zyu² {èr dì zhǔ}

1. sublandlord
2. tenant who sublets

二丁醚 ji⁶ ding¹ mai⁴ {èr dīng mí}

dibutyl ether

二疊紀〔-叠纪〕 ji⁶ dip⁶ gei² {Èr dié jì}

Permian (geological period 292-250m years ago)

二迭紀〔--纪〕 ji⁶ dit⁶ gei² {Èr dié jì}

1. Permian (geological period 292-250m years ago)
2. also written 二疊紀

二道江 ji⁶ dou⁶ gong¹ {Èr dào jiāng}

Erdaojiang district of Tonghua city 通化市, Jilin

二道區〔--区〕 ji⁶ dou⁶ keoi¹ {Èr dào qū}

Erdao district of Changchun city 長春市, Jilin

二分裂 ji⁶ fan¹ lit⁶ {èr fēn liè}

binary division (in bacterial reproduction)

二婚頭〔--头〕 ji⁶ fan¹ tau⁴ {èr hūn tóu}

1. remarried lady (contemptuous term)
2. lady who marries for a second time

二分點〔--点〕 ji⁶ fan⁶ dim² {èr fēn diǎn}

the two equinoxes

二房東〔--东〕 ji⁶ fong⁴ dung¹ {èr fáng dōng}

1. sublandlord
2. tenant who sublets

二尕子 ji⁶ gaa¹ zi² {èr gǎ zi}

scoundrel

二甲苯 ji⁶ gaap³ bun² {èr jiǎ běn}

xylene

二甘醇 ji⁶ gam¹ seon⁴ {èr gān chún}

1. diethylene glycol
2. glycerin (used in antifreeze)

二極管〔-极-〕 ji⁶ gik⁶ gun² {èr jí guǎn}

1. diode
2. vacuum tube

二杆子 ji⁶ gon¹ zi² {èr gān zi}

1. hot-tempered
2. rash
3. hot-tempered person

二鬼子 ji⁶ gwai² zi² {èr guǐ zi}

1. traitor
2. collaborator with the enemy

二合一 ji⁶ hap⁶ jat¹ {èr hé yī}

1. 2-in-1
2. two-in-one

二項式〔-项-〕 ji⁶ hong⁶ sik¹ {èr xiàng shì}

1. two items
2. binomial (math.)

二人臺〔--台〕 ji⁶ jan⁴ toi⁴ {èr rén tái}

genre of song-and-dance duet popular in Inner Mongolia

二人轉〔--转〕 ji⁶ jan⁴ zyun³ {èr rén zhuàn}

genre of song-and-dance duet popular in northeast China

二氧芑 ji⁶ joeng⁵ hei² {èr yǎng qǐ}

dioxin

二元論〔--论〕 ji⁶ jyun⁴ leon⁶ {èr yuán lùn}

dualism, belief that the universe is made of two different substance (e.g. mind and matter or good and evil)

二元醇 ji⁶ jyun⁴ seon⁴ {èr yuán chún}

ethyl alcohol C2H5OH

二月份 ji⁶ jyut⁶ fan⁶ {èr yuè fèn}

February

二級頭〔-级头〕 ji⁶ kap¹ tau⁴ {èr jí tóu}

second stage (diving)

二林鎮〔--镇〕 ji⁶ lam⁴ zan³ {Èr lín zhèn}

Erhlin town in Changhua county 彰化縣, Taiwan

二流子 ji⁶ lau⁴ zi² {èr liú zi}

1. loafer
2. idler
3. bum

二里頭〔--头〕 ji⁶ lei⁵ tau⁴ {Èr lǐ tou}

Erlitou (Xia dynasty 夏朝 archaeological site at Yanshi 偃师 in Luoyang 洛陽, Henan)

二崙鄉〔-仑乡〕 ji⁶ leon⁴ hoeng¹ {Èr lún xiāng}

Erlun or Erhlun township in Yunlin county 雲林縣, Taiwan

二愣子 ji⁶ ling⁶ zi² {èr lèng zi}

1. stupid person
2. dolt
3. rash (slang)

二郎神 ji⁶ long⁴ san⁴ {Èr láng shén}

Erlangshen, Chinese deity

二郎腿 ji⁶ long⁴ teoi² {èr láng tuǐ}

one leg over the other (legs crossed)

二氯胺 ji⁶ luk⁶ on¹ {èr lǜ àn}

dichloramine

二名法 ji⁶ ming⁴ faat³ {èr míng fǎ}

1. binomial nomenclature (taxonomy)
2. same as 雙名法

二毛子 ji⁶ mou⁴ zi² {èr máo zi}

(coll.) westernized Chinese

二年生 ji⁶ nin⁴ sang¹ {èr nián shēng}

biennial (botany)

二惡英〔-恶-〕 ji⁶ ok³ jing¹ {èr è yīng}

dioxin

二遍苦 ji⁶ pin³ fu² {èr biàn kǔ}

second persecution

二倍體〔--体〕 ji⁶ pui⁵ tai² {èr bèi tǐ}

diploid (in cell biology)

二十多 ji⁶ sap⁶ do¹ {èr shí duō}

over 20

二手車〔--车〕 ji⁶ sau² ce¹ {èr shǒu chē}

second-hand car

二手貨〔--货〕 ji⁶ sau² fo³ {èr shǒu huò}

1. second-hand goods
2. used goods

二手房 ji⁶ sau² fong⁴ {èr shǒu fáng}

1. second-hand house
2. house acquired indirectly through a middle-man

二手煙〔--烟〕 ji⁶ sau² jin¹ {èr shǒu yān}

second-hand smoke

二水貨〔--货〕 ji⁶ seoi² fo³ {èr shuǐ huò}

1. used goods
2. second hand goods

二水鄉〔--乡〕 ji⁶ seoi² hoeng¹ {Èr shuǐ xiāng}

Erhshui township in Changhua county 彰化縣, Taiwan

二頭肌〔-头-〕 ji⁶ tau⁴ gei¹ {èr tóu jī}

biceps muscle

二維碼〔-维码〕 ji⁶ wai⁴ maa⁵ {èr wéi mǎ}

1. two-dimensional barcode
2. QR code

二鍋頭〔-锅头〕 ji⁶ wo¹ tau⁴ {èr guō tóu}

erguotou (sorghum liquor)

二皇帝 ji⁶ wong⁴ dai³ {èr huáng dì}

second emperor of a dynasty

二進宮〔-进宫〕 ji⁶ zeon³ gung¹ {èr jìn gōng}

1. name of a famous opera
2. (slang) to go to jail for a second offense

二進制〔-进-〕 ji⁶ zeon³ zai³ {èr jìn zhì}

binary system (math)

二尖瓣 ji⁶ zim¹ baan⁶ {èr jiān bàn}

mitral valve (physiology)

二節棍〔-节-〕 ji⁶ zit³ gwan³ {èr jié gùn}

nunchaku (weapon with two rods joined by a short chain, used in martial arts)

二十八日 ji⁶ sap⁶ baat³ jat⁶ {èr shí bā rì}

twenty eight days; twenty-eighth [date]

二十七日 ji⁶ sap⁶ cat¹ jat⁶ {èr shí qī rì}

twenty seven days; twenty-seventh [date]

二十九日 ji⁶ sap⁶ gau² jat⁶ {èr shí jiǔ rì}

twenty nine days; twenty-ninth [date]

二十一日 ji⁶ sap⁶ jat¹ jat⁶ {èr shí yī rì}

twenty one days; twenty-first [date]

二十二日 ji⁶ sap⁶ ji⁶ jat⁶ {èr shí èr rì}

twenty two days; twenty-second [date]

二十六日 ji⁶ sap⁶ luk⁶ jat⁶ {èr shí liù rì}

twenty six days; twenty-sixth [date]

二十五日 ji⁶ sap⁶ ng⁵ jat⁶ {èr shí wǔ rì}

twenty five days; twenty-fifth [date]

二十三日 ji⁶ sap⁶ saam¹ jat⁶ {èr shí sān rì}

twenty tree days; twenty-third [date]

二十四日 ji⁶ sap⁶ sei³ jat⁶ {èr shí sì rì}

twenty four days; twenty-fourth [date]

二手市場〔---场〕 ji⁶ sau² si⁵ coeng⁴ {èr shǒu shì chǎng}

second-hand goods market

二進位制〔-进--〕 ji⁶ zeon³ wai² zai³ {èr jìn wèi zhì}

Binary system

二斑百靈〔---灵〕 ji⁶ baan¹ baak³ ling⁴ {èr bān bǎi líng}

(Chinese bird species) bimaculated lark (Melanocorypha bimaculata)

二八佳人 ji⁶ baat³ gaai¹ jan⁴ {èr bā jiā rén}

16-year-old beauty

二苯氯胂 ji⁶ bun² luk⁶ san⁶ {èr běn lǜ shèn}

diphenylchloroarsine

二次大戰〔---战〕 ji⁶ ci³ daai⁶ zin³ {Èr cì Dà zhàn}

World War Two

二次方程 ji⁶ ci³ fong¹ cing⁴ {èr cì fāng chéng}

quadratic equation

二次革命 ji⁶ ci³ gaak³ ming⁶ {èr cì gé mìng}

1. second revolution
2. campaign from 1913 of the provisional revolutionary government (under Sun Yat-sen and the Guomindang) against Yuan Shikai 袁世凱 and the Northern Warlords

二次函數〔---数〕 ji⁶ ci³ haam⁴ sou³ {èr cì hán shù}

quadratic function

二次曲面 ji⁶ ci³ kuk¹ min⁶ {èr cì qū miàn}

quadric surface (geometry)

二次曲線〔---线〕 ji⁶ ci³ kuk¹ sin³ {èr cì qū xiàn}

1. quadratic curve (geometry)
2. conic

二重下標〔---标〕 ji⁶ cung⁴ haa⁶ biu¹ {èr chóng xià biāo}

1. double subscript
2. doubly indexed

二重母音 ji⁶ cung⁴ mou⁵ jam¹ {èr chóng mǔ yīn}

diphthong

二道販子〔--贩-〕 ji⁶ dou⁶ faan³ zi² {èr dào fàn zi}

1. middleman
2. buyer and seller

二道江區〔---区〕 ji⁶ dou⁶ gong¹ keoi¹ {Èr dào jiāng qū}

Erdaojiang district of Tonghua city 通化市, Jilin

二分音符 ji⁶ fan¹ jam¹ fu⁴ {èr fēn yīn fú}

minim (music)

二分之一 ji⁶ fan⁶ zi¹ jat¹ {èr fēn zhī yī}

one half

二號電池〔-号电-〕 ji⁶ hou⁶ din⁶ ci⁴ {èr hào diàn chí}

1. C size battery (Tw)
2. PRC equivalent: 三號電池

二號人物〔-号--〕 ji⁶ hou⁶ jan⁴ mat⁶ {èr hào rén wù}

1. second best person
2. second-rate person

二人世界 ji⁶ jan⁴ sai³ gaai³ {èr rén shì jiè}

1. world with only two people (usually refers to a romantic couple)
2. romantic couple's world

二氧化氮 ji⁶ joeng⁵ faa³ daam⁶ {èr yǎng huà dàn}

nitrogen dioxide

二氧化硅 ji⁶ joeng⁵ faa³ gwai¹ {èr yǎng huà guī}

silicon dioxide (SiO2)

二氧化鈾〔---铀〕 ji⁶ joeng⁵ faa³ jau⁴ {èr yǎng huà yóu}

1. brown oxidier
2. uranium dioxide

二氧化硫 ji⁶ joeng⁵ faa³ lau⁴ {èr yǎng huà liú}

sulfur dioxide SO2

二氧化錳〔---锰〕 ji⁶ joeng⁵ faa³ maang⁵ {èr yǎng huà měng}

manganese(iv) oxide

二氧化物 ji⁶ joeng⁵ faa³ mat⁶ {èr yǎng huà wù}

dioxide

二氧化鈦〔---钛〕 ji⁶ joeng⁵ faa³ taai³ {èr yǎng huà tài}

titanium dioxide

二氧化碳 ji⁶ joeng⁵ faa³ taan³ {èr yǎng huà tàn}

carbon dioxide CO2

二氧雜芑〔--杂-〕 ji⁶ joeng⁵ zaap⁶ hei² {èr yǎng zá qǐ}

dioxin

二級士官〔-级--〕 ji⁶ kap¹ si⁶ gun¹ {èr jí shì guān}

sergeant

二硫化碳 ji⁶ lau⁴ faa³ taan³ {èr liú huà tàn}

carbon disulfide

二連浩特〔-连--〕 ji⁶ lin⁴ hou⁶ dak⁶ {Èr lián hào tè}

Erlianhaote city in Xilin Gol league 錫林郭勒盟, Inner Mongolia

二連盆地〔-连--〕 ji⁶ lin⁴ pun⁴ dei⁶ {Èr lián pén dì}

Erlian basin in Inner Mongolia

二氯甲烷 ji⁶ luk⁶ gaap³ jyun⁴ {èr lǜ jiǎ wán}

dichloromethane

二奶專家〔--专-〕 ji⁶ naai¹ zyun¹ gaa¹ {èr nǎi zhuān jiā}

"mercenary expert", a person who is supposedly an independent expert, but receives payment for making comments favorable to a particular entity

二十八宿 ji⁶ sap⁶ baat³ sau³ {èr shí bā xiù}

the twenty-eight constellations

二十一點〔---点〕 ji⁶ sap⁶ jat¹ dim² {èr shí yī diǎn}

blackjack (card game)

二十一條〔---条〕 ji⁶ sap⁶ jat¹ tiu⁴ {Èr shí yī Tiáo}

the Japanese Twenty-One Demands of 1915

二十六歲〔---岁〕 ji⁶ sap⁶ luk⁶ seoi³ {èr shí liù suì}

26 years old

二十面體〔---体〕 ji⁶ sap⁶ min⁶ tai² {èr shí miàn tǐ}

icosahedron

二十五史 ji⁶ sap⁶ ng⁵ si² {èr shí wǔ shǐ}

twenty four dynastic histories (or 25 or 26 in modern editions)

二十世紀〔---纪〕 ji⁶ sap⁶ sai³ gei² {èr shí shì jì}

20th century

二十四孝 ji⁶ sap⁶ sei³ haau³ {Èr shí sì Xiào}

the Twenty-four Filial Exemplars, classic Confucian text on filial piety from Yuan dynasty

二十四史 ji⁶ sap⁶ sei³ si² {Èr shí sì Shǐ}

1. the Twenty-Four Histories (25 or 26 in modern editions), collection of books on Chinese dynastic history from 3000 BC till 17th century
2. fig. a long and complicated story

二話不說〔-话-说〕 ji⁶ waa⁶ bat¹ syut³ {èr huà bù shuō}

1. not saying anything further (idiom); not raising any objection
2. without demur

二者之一 ji⁶ ze² zi¹ jat¹ {èr zhě zhī yī}

either

二正丙醚 ji⁶ zing³ bing² mai⁴ {èr zhèng bǐng mí}

di-n-propyl ether

二次多項式〔---项-〕 ji⁶ ci³ do¹ hong⁶ sik¹ {èr cì duō xiàng shì}

quadratic polynomial

二甲基砷酸 ji⁶ gaap³ gei¹ san¹ syun¹ {èr jiǎ jī shēn suān}

1. dimethylarsenic acid (CH3)2AsO2H
2. cacodylic acid

二甲基胂酸 ji⁶ gaap³ gei¹ san⁶ syun¹ {èr jiǎ jī shèn suān}

1. dimethylarsenic acid (CH3)2AsO2H
2. cacodylic acid

二項式定理〔-项---〕 ji⁶ hong⁶ sik¹ ding⁶ lei⁵ {èr xiàng shì dìng lǐ}

the Binomial Theorem (math.)

二項式係數〔-项-系数〕 ji⁶ hong⁶ sik¹ hai⁶ sou³ {èr xiàng shì xì shù}

1. a binomial coefficient (math.)
2. the number of combinations

二一添作五 ji⁶ jat¹ tim¹ zok³ ng⁵ {èr yī tiān zuò wǔ}

1. lit. one half equals zero point five (division rule in abacus reckoning)
2. to share fairly between two parties
3. to go fifty-fifty

二硫基丙醇 ji⁶ lau⁴ gei¹ bing² seon⁴ {èr liú jī bǐng chún}

dimercaprol

二磷酸腺苷 ji⁶ leon⁴ syun¹ sin³ gam¹ {èr lín suān xiàn gān}

adenosine diphosphate (ADP)

二連巨盜龍〔-连-盗龙〕 ji⁶ lin⁴ geoi⁶ dou⁶ lung⁴ {èr lián jù dào lóng}

Gigantoraptor erlianensis (a giant bird-like dinosaur found in Erlian in Inner Mongolia)

二連浩特市〔-连---〕 ji⁶ lin⁴ hou⁶ dak⁶ si⁵ {Èr lián hào tè shì}

Erlianhaote city in Xilin Gol league 錫林郭勒盟, Inner Mongolia

二十一世紀〔----纪〕 ji⁶ sap⁶ jat¹ sai³ gei² {èr shí yī shì jì}

21st century

二十四節氣〔---节气〕 ji⁶ sap⁶ sei³ zit³ hei³ {èr shí sì jié qi}

the 24 solar terms, calculated from the position of the sun on the ecliptic, that divide the year into 24 equal periods

二進制編碼〔-进-编码〕 ji⁶ zeon³ zai³ pin¹ maa⁵ {èr jìn zhì biān mǎ}

1. binary code
2. binary encoding

二尖瓣狹窄〔---狭-〕 ji⁶ zim¹ baan⁶ haap⁶ zaak³ {èr jiān bàn xiá zhǎi}

mitral stenosis (physiology)

二次世界大戰〔-----战〕 ji⁶ ci³ sai³ gaai³ daai⁶ zin³ {Èr cì Shì jiè Dà zhàn}

World War Two

二刻拍案驚奇〔----惊-〕 ji⁶ hak¹ paak³ on³ ging¹ kei⁴ {Èr kè Pāi àn Jīng qí}

Slapping the Table in Amazement (Part II), second of two books of vernacular stories by Ming dynasty novelist Ling Mengchu 凌濛初

二氧化碳隔離〔-----离〕 ji⁶ joeng⁵ faa³ taan³ gaak³ lei⁴ {èr yǎng huà tàn gé lí}

1. carbon sequestration
2. carbon dioxide sequestration

二級頭呼吸器〔-级头---〕 ji⁶ kap¹ tau⁴ fu¹ kap¹ hei³ {èr jí tóu hū xī qì}

1. (diving) regulator
2. demand valve

二氯乙烷中毒 ji⁶ luk⁶ jyut³ jyun⁴ zung³ duk⁶ {èr lǜ yǐ wán zhōng dú}

dichloroethane poisoning

二硫基丙磺酸鈉〔------钠〕 ji⁶ lau⁴ gei¹ bing² wong⁴ syun¹ naap⁶ {èr liú jī bǐng huáng suān nà}

sodium dimercaptosulfanate

二硫基琥珀酸鈉〔------钠〕 ji⁶ lau⁴ gei¹ fu² paak³ syun¹ naap⁶ {èr liú jī hǔ pò suān nà}

sodium dimercaptosuccinate

二氯苯胺苯乙酸鈉〔-------钠〕 ji⁶ luk⁶ bun² on¹ bun² jyut³ syun¹ naap⁶ {èr lǜ běn àn běn yǐ suān nà}

1. diclofenac sodium (non-steroidal anti-inflammatory drug used to reduce swelling and as pain-killer)
2. also called voltaren 扶他林

二氯異三聚氰酸鈉〔--异----钠〕 ji⁶ luk⁶ ji⁶ saam¹ zeoi⁶ cing¹ syun¹ naap⁶ {èr lǜ yì sān jù qíng suān nà}

sodium dichloroisocyanurate

二十年目睹之怪現狀〔-------现状〕 ji⁶ sap⁶ nin⁴ muk⁶ dou² zi¹ gwaai³ jin⁶ zong⁶ {Èr shí Nián Mù dǔ zhī Guài Xiàn zhuàng}

The Strange State of the World Witnessed Over 20 Years, novel by late Qing novelist Wu Jianren 吳趼人