| 異 | [ yì  ]    different, other, hetero-, unusual, strange, surprising, to distinguish, to separate, to discriminate | 
| 異丁烷 | [ yì dīng wán  ]    isobutane | 
| 異丁苯丙酸 | [ yì dīng běn bǐng suān  ]    Ibuprofen or Nurofen, nonsteroidal anti-inflammatory drug (NSAID), trade names Advil, Motrin, Nuprin etc, used as analgesic and antipyretic, e.g. for arthritis sufferers, also called 布洛芬 | 
| 異丙苯 | [ yì bǐng běn  ]    (chemistry) isopropylbenzene C9H12 (aka cumene) | 
| 異丙醇 | [ yì bǐng chún  ]    isopropanol, isopropyl alcohol C3H8O | 
| 異乎尋常 | [ yì hū xún cháng  ]    unusual, extraordinary | 
| 異事 | [ yì shì  ]    sth else, a separate matter, not the same thing, with different jobs (not colleagues), a remarkable thing, sth special, an odd thing, sth strange or incomprehensible | 
| 異亮氨酸 | [ yì liàng ān suān  ]    isoleucine (Ile), an essential amino acid | 
| 異人 | [ yì rén  ]    eccentric, unusual person, talented individual | 
| 異像 | [ yì xiàng  ]    extraordinary image | 
| 異動 | [ yì dòng  ]    to shift, to alter, unusual change, abnormal move | 
| 異化 | [ yì huà  ]    alienation (philosophy), (of speech) dissimilation | 
| 異化作用 | [ yì huà zuò yòng  ]    catabolism (biology), metabolic breaking down and waste disposal, dissimilation | 
| 異卵 | [ yì luǎn  ]    (of twins) fraternal, dizygotic | 
| 異卵雙胞胎 | [ yì luǎn shuāng baō taī  ]    fraternal twins | 
| 異口同聲 | [ yì koǔ tóng shēng  ]    different mouths, same voice, to speak in unison (idiom) | 
| 異同 | [ yì tóng  ]    comparison, differences and similarities | 
| 異味 | [ yì weì  ]    unpleasant odor | 
| 異咯嗪 | [ yì gē qín  ]    isoalloxazine (name of organic chemical) | 
| 異國 | [ yì guó  ]    exotic, foreign | 
| 異國他鄉 | [ yì guó tā xiāng  ]    foreign lands and places (idiom); living as expatriate | 
| 異國情調 | [ yì guó qíng  ]    exoticism, local color, exotic | 
| 異地 | [ yì dì  ]    different place, abroad | 
| 異地戀 | [ yì dì liàn  ]    long-distance romance, long-distance relationship | 
| 異域 | [ yì yù  ]    foreign country, alien land | 
| 異己 | [ yì jǐ  ]    dissident, alien, outsider, non-self, others | 
| 異常 | [ yì cháng  ]    exceptional, abnormal, an anomaly | 
| 異形 | [ yì xíng  ]    not the usual type, atypical, heterotype | 
| 異形詞 | [ yì xíng cí  ]    variant spelling of the same Chinese word, e.g. 筆劃|笔划[bi3 hua4] and 筆畫|笔画[bi3 hua4], exact synonym and homonym written with different characters | 
| 異彩 | [ yì caǐ  ]    extraordinary splendor | 
| 異心 | [ yì xīn  ]    disloyalty, infidelity | 
| 異性 | [ yì xìng  ]    the opposite sex, of the opposite sex, heterosexual, different in nature | 
| 異性性接觸 | [ yì xìng xìng jiē chù  ]    heterosexual sex | 
| 異性戀 | [ yì xìng liàn  ]    heterosexuality, heterosexual love | 
| 異性戀主義 | [ yì xìng liàn zhǔ yì  ]    heterosexism | 
| 異性相吸 | [ yì xìng xiāng xī  ]    opposite polarities attract, (fig.) opposite sexes attract, opposites attract | 
| 異想天開 | [ yì xiǎng tiān kaī  ]    to imagine the wildest thing, to indulge in fantasy | 
| 異戊二烯 | [ yì wù èr xī  ]    isoprene | 
| 異戊巴比妥 | [ yì wù bā bǐ tuǒ  ]    amobarbital (drug) (loanword) | 
| 異戊橡膠 | [ yì wù xiàng  ]    isoprene rubber | 
| 異才 | [ yì caí  ]    extraordinary talent | 
| 異教 | [ yì  ]    heresy, heathenism | 
| 異教徒 | [ yì tú  ]    member of another religion, heathen, pagan, heretic, apostate | 
| 異文 | [ yì wén  ]    variant character, loan word, variant written form (for the same word), different edition | 
| 異族 | [ yì zú  ]    different tribe | 
| 異曲同工 | [ yì qǔ tóng gōng  ]    different tunes played with equal skill (idiom), different methods leading to the same result, different approach but equally satisfactory outcome | 
| 異株蕁麻 | [ yì zhū qián má  ]    common nettle (Urtica dioica) | 
| 異構 | [ yì goù  ]    isomeric (chemistry) | 
| 異構體 | [ yì goù tǐ  ]    isomer (chemistry) | 
| 異樣 | [ yì yàng  ]    difference, peculiar | 
| 異步 | [ yì bù  ]    asynchronous | 
| 異步傳輸模式 | [ yì bù chuán shū mó shì  ]    asynchronous transfer mode, ATM | 
| 異母 | [ yì mǔ  ]    (of siblings) having the same father but different mothers | 
| 異源多倍體 | [ yì yuán duō beì tǐ  ]    allopolyploid (polyploid with chromosomes of different species) | 
| 異焉 | [ yì yān  ]    feeling surprised at sth | 
| 異父 | [ yì fù  ]    with different father (e.g. of half-brother) | 
| 異物 | [ yì wù  ]    rarity, rare delicacy, foreign matter, alien body, the dead, ghost, monstrosity, alien life-form | 
| 異特龍 | [ yì tè lóng  ]    allosaurus | 
| 異狀 | [ yì zhuàng  ]    unusual condition, something odd, strange shape | 
| 異病同治 | [ yì bìng tóng zhì  ]    to use the same method to treat different diseases (TCM) | 
| 異種 | [ yì zhǒng  ]    hetero-, variety | 
| 異端 | [ yì duān  ]    heresy | 
| 異端者 | [ yì duān zhě  ]    a heretic | 
| 異維A酸 | [ yì weí suān  ]    isotretinoin (used in acne treatment) | 
| 異義 | [ yì yì  ]    differing opinion | 
| 異能 | [ yì néng  ]    different function | 
| 異腈 | [ yì jīng  ]    carbylamine, isocyanide | 
| 異色樹鶯 | [ yì sè shù yīng  ]    (bird species of China) aberrant bush warbler (Horornis flavolivaceus) | 
| 異裝癖 | [ yì zhuāng pǐ  ]    transvestism | 
| 異見 | [ yì jiàn  ]    dissident, dissenting, dissent | 
| 異見者 | [ yì jiàn zhě  ]    dissident | 
| 異言 | [ yì yán  ]    dissenting words | 
| 異說 | [ yì shuō  ]    different opinion, dissident view, absurd remark | 
| 異議 | [ yì yì  ]    objection, dissent | 
| 異議人士 | [ yì yì rén shì  ]    dissident | 
| 異議份子 | [ yì yì fèn zǐ  ]    dissidents, dissenting faction | 
| 異議者 | [ yì yì zhě  ]    dissenter, dissident | 
| 異讀 | [ yì dú  ]    variant pronunciation (when the same character has more than one reading) | 
| 異讀詞 | [ yì dú cí  ]    word having alternative pronunciations | 
| 異質 | [ yì zhì  ]    heterogeneous | 
| 異質網路 | [ yì zhì wǎng lù  ]    heterogeneous network | 
| 異質體 | [ yì zhì tǐ  ]    variant | 
| 異軍突起 | [ yì jūn tū qǐ  ]    to emerge as a new force to be reckoned with (idiom) | 
| 異邦 | [ yì bāng  ]    foreign country | 
| 異鄉 | [ yì xiāng  ]    foreign land, a place far from home | 
| 異鄉人 | [ yì xiāng rén  ]    stranger | 
| 異面直線 | [ yì miàn zhí xiàn  ]    (math.) skew lines | 
| 異頻雷達收發機 | [ yì pín leí dá shoū fā jī  ]    transponder, electronic device that responds to a radio code | 
| 異食癖 | [ yì shí pǐ  ]    pica (medicine) | 
| 異香 | [ yì xiāng  ]    rare perfume | 
| 異香撲鼻 | [ yì xiāng pū bí  ]    exotic odors assail the nostrils (idiom) | 
| 異體 | [ yì tǐ  ]    variant form (of a Chinese character) | 
| 異體字 | [ yì tǐ zì  ]    variant Chinese character | 
| 異龍 | [ yì lóng  ]    allosaurus, also written 異特龍|异特龙 | 
| ⇒ 二氯異三聚氰酸鈉 | [ èr lǜ yì sān jù qíng suān nà  ]    sodium dichloroisocyanurate | 
| ⇒ 互異 | [ hù yì  ]    differing from one another, mutually different | 
| ⇒ 亞硝酸異戊酯 | [ yà suān yì wù zhǐ  ]    amyl nitrite | 
| ⇒ 優異 | [ yoū yì  ]    exceptional, outstandingly good | 
| ⇒ 優異獎 | [ yoū yì jiǎng  ]    excellence award, merit award | 
| ⇒ 兩性異形 | [ liǎng xìng yì xíng  ]    sexual dimorphism | 
| ⇒ 分異 | [ fēn yì  ]    distinction, differentiation | 
| ⇒ 卓異 | [ zhuó yì  ]    (of talent) outstanding, exceptional | 
| ⇒ 各異 | [ gè yì  ]    all different, each unto his own | 
| ⇒ 同分異構 | [ tóng fēn yì goù  ]    isomerism (chemistry) | 
| ⇒ 同分異構體 | [ tóng fēn yì goù tǐ  ]    isomer (chemistry) | 
| ⇒ 同床異夢 | [ tóng chuáng yì mèng  ]    lit. to share the same bed with different dreams (idiom); ostensible partners with different agendas, strange bedfellows, marital dissension | 
| ⇒ 同母異父 | [ tóng mǔ yì fù  ]    (of siblings) having the same mother but different fathers, half (brother or sister) | 
| ⇒ 同父異母 | [ tóng fù yì mǔ  ]    (of siblings) having the same father but different mothers, half (brother or sister) | 
| ⇒ 同素異形體 | [ tóng sù yì xíng tǐ  ]    allotropy | 
| ⇒ 同量異位素 | [ tóng liàng yì weì sù  ]    nuclear isobar | 
| ⇒ 因人而異 | [ yīn rén ér yì  ]    varying from person to person (idiom); different for each individual | 
| ⇒ 基因染色體異常 | [ jī yīn rǎn sè tǐ yì cháng  ]    genetic chromosome abnormality | 
| ⇒ 大同小異 | [ dà tóng yì  ]    virtually the same, differing only on small points | 
| ⇒ 大放異彩 | [ dà fàng yì caǐ  ]    to shine (of talents, skills, accomplishment), to demonstrate extraordinary talent or skill | 
| ⇒ 天賦異稟 | [ tiān fù yì bǐng  ]    extraordinary talent, exceptionally gifted | 
| ⇒ 奇珍異寶 | [ qí zhēn yì baǒ  ]    rare treasure (idiom) | 
| ⇒ 奇異 | [ qí yì  ]    fantastic, bizarre, odd, exotic, astonished | 
| ⇒ 奇異夸克 | [ qí yì kuā kè  ]    strange quark (particle physics) | 
| ⇒ 奇異果 | [ qí yì guǒ  ]    kiwi fruit, Chinese gooseberry | 
| ⇒ 奇異筆 | [ qí yì bǐ  ]    marker (writing instrument) | 
| ⇒ 奇能異士 | [ qí néng yì shì  ]    extraordinary hero with special abilities, martial arts superhero | 
| ⇒ 奇花異卉 | [ qí huā yì huì  ]    exotic flowers and rare herbs (idiom) | 
| ⇒ 奇花異草 | [ qí huā yì caǒ  ]    very rarely seen, unusual (idiom) | 
| ⇒ 奇葩異卉 | [ qí pā yì huì  ]    rare and exotic flora (idiom) | 
| ⇒ 奇裝異服 | [ qí zhuāng yì fú  ]    bizarre dress | 
| ⇒ 好奇尚異 | [ haò qí shàng yì  ]    to have a taste for the exotic (idiom) | 
| ⇒ 客死異鄉 | [ kè sǐ yì xiāng  ]    to die in a foreign land (idiom) | 
| ⇒ 對映異構 | [ duì yìng yì goù  ]    enantiomeric isomerism (chemistry) | 
| ⇒ 對映異構體 | [ duì yìng yì goù tǐ  ]    enantiomeric isomer (chemistry) | 
| ⇒ 差異 | [ chā yì  ]    difference, discrepancy | 
| ⇒ 差異性 | [ chā yì xìng  ]    difference | 
| ⇒ 怪異 | [ yì  ]    monstrous, strange, strange phenomenon | 
| ⇒ 政治異議人士 | [ zhèng zhì yì yì rén shì  ]    political dissident | 
| ⇒ 新異 | [ xīn yì  ]    new and different, novelty | 
| ⇒ 日新月異 | [ rì xīn yuè yì  ]    daily renewal, monthly change (idiom), every day sees new developments, rapid progress | 
| ⇒ 智異山 | [ zhì yì shān  ]    Jirisan or Mount Chiri, mountain in the south of South Korea | 
| ⇒ 標新取異 | [ xīn qǔ yì  ]    to start on sth new and different (idiom); to display originality | 
| ⇒ 標新立異 | [ xīn lì yì  ]    to make a show of being original or unconventional (idiom) | 
| ⇒ 標新競異 | [ xīn jìng yì  ]    to start on sth new and different (idiom); to display originality | 
| ⇒ 標新領異 | [ xīn lǐng yì  ]    to bring in the new (idiom); new directions, different creation | 
| ⇒ 歧異 | [ qí yì  ]    difference, discrepancy | 
| ⇒ 殊異 | [ shū yì  ]    entirely different, quite separate | 
| ⇒ 求同存異 | [ qiú tóng cún yì  ]    to seek common ground, putting differences aside (idiom) | 
| ⇒ 無異 | [ wú yì  ]    nothing other than, to differ in no way from, the same as, to amount to | 
| ⇒ 特異 | [ tè yì  ]    exceptionally good, excellent, clearly outstanding, distinctive, peculiar, unique | 
| ⇒ 特異功能 | [ tè yì gōng néng  ]    supernatural power, extrasensory perception | 
| ⇒ 特異性 | [ tè yì xìng  ]    specific, specificity, idiosyncrasy | 
| ⇒ 特異選擇 | [ tè yì xuǎn zé  ]    special choice, special reserve | 
| ⇒ 獨在異鄉為異客 | [ dú zaì yì xiāng weí yì kè  ]    a stranger in a strange land (from a poem by Wang Wei 王維|王维[Wang2 Wei2]) | 
| ⇒ 獨在異鄉為異客 | [ dú zaì yì xiāng weí yì kè  ]    a stranger in a strange land (from a poem by Wang Wei 王維|王维[Wang2 Wei2]) | 
| ⇒ 獨放異彩 | [ dú fàng yì caǐ  ]    to project singular splendor or radiance, to perform brilliantly | 
| ⇒ 珍異 | [ zhēn yì  ]    rare, precious and odd | 
| ⇒ 瑰異 | [ guī yì  ]    marvelous, magnificent | 
| ⇒ 甚感詫異 | [ shèn gǎn chà yì  ]    amazed, astonished, deeply troubled | 
| ⇒ 相異 | [ xiāng yì  ]    different, dissimilar | 
| ⇒ 磁異常 | [ cí yì cháng  ]    magnetic anomaly (geology) | 
| ⇒ 神異 | [ shén yì  ]    magical, miraculous, mystical | 
| ⇒ 稍異 | [ shaō yì  ]    differing slightly | 
| ⇒ 穎異 | [ yǐng yì  ]    highly intelligent, original and unique | 
| ⇒ 立體異構 | [ lì tǐ yì goù  ]    stereoisomerism (chemistry) | 
| ⇒ 立體異構體 | [ lì tǐ yì goù tǐ  ]    stereoisomer (chemistry) | 
| ⇒ 聊齋志異 | [ zhaī zhì yì  ]    Strange Stories from a Chinese Studio, Qing dynasty book of tales by 蒲松齡|蒲松龄[Pu2 Song1 ling2] | 
| ⇒ 見異思遷 | [ jiàn yì sī qiān  ]    to change at once on seeing sth different (idiom); loving fads and novelty, never satisfied with what one has | 
| ⇒ 訝異 | [ yà yì  ]    to be surprised, to be astonished | 
| ⇒ 詫異 | [ chà yì  ]    flabbergasted, astonished | 
| ⇒ 詭異 | [ guǐ yì  ]    strange, weird | 
| ⇒ 誅鋤異己 | [ zhū chú yì jǐ  ]    to wipe out dissenters, to exterminate those who disagree | 
| ⇒ 變異 | [ biàn yì  ]    variation | 
| ⇒ 變異型克雅氏症 | [ biàn yì xíng kè yǎ shì zhèng  ]    variant Creutzfeldt-Jacobs disease, vCJD | 
| ⇒ 變異株 | [ biàn yì zhū  ]    variant, variant strain (of virus) | 
| ⇒ 身首異處 | [ shēn shoǔ yì chù  ]    to be decapitated (idiom) | 
| ⇒ 迥異 | [ jiǒng yì  ]    totally different | 
| ⇒ 重力異常 | [ zhòng lì yì cháng  ]    gravitational anomaly (geology) | 
| ⇒ 雌雄異色 | [ cí xióng yì sè  ]    sexual coloration | 
| ⇒ 離異 | [ lí yì  ]    to divorce | 
| ⇒ 靈異 | [ líng yì  ]    deity, monster, strange, mysterious, supernatural | 
| ⇒ 非異人任 | [ feī yì rén rèn  ]    to bear one's own responsibilities and not pass them to others (idiom) | 
| ⇒ 驚異 | [ jīng yì  ]    amazed | 
| ⇒ 骨髓增生異常綜合徵 | [ gǔ suǐ zēng shēng yì cháng zōng hé zhēng  ]    myelodysplastic syndrome (MDS) | 
| ⇒ 黨同伐異 | [ dǎng tóng fá yì  ]    to be narrowly partisan, to unite with those of the same views but alienate those with different views |