| 異 | [ yì ] different, unusual, strange |
| 異步 | [ yì bù ] asynchronous |
| 異步傳輸模式 | [ yì bù chúan shū mó shì ] asynchronous transfer mode, ATM |
| 異常 | [ yì cháng ] exceptional, abnormal |
| 異見者 | [ yì jìan zhě ] dissident |
| 異教 | [ yì jiào ] heresy, heathenism |
| 異教徒 | [ yì jiào tú ] heathen, heretic |
| 異口同聲 | [ yì kǒu tóng shēng ] (phr) with one voice; (say) in unison |
| 異卵雙胞胎 | [ yì lǔan shūang bāo tāi ] fraternal twins |
| 異性 | [ yì xìng ] heterosexual |
| 異性性接觸 | [ yì xìng xìng jīe chù ] heterosexual sex |
| 異議 | [ yì yì ] objection, dissent |
| 異議人士 | [ yì yì rén shì ] dissident |
| 異質 | [ yì zhì ] heterogeneous |
| 異質網路 | [ yì zhì wǎng lù ] heterogeneous network |
| ⇒ 變異 | [ bìan yì ] variation |
| ⇒ 標新立異 | [ biāo xīn lì yì ] start something new in order to be different, do something unconventional or unorthodox, create something new and original |
| ⇒ 差異 | [ chā yì ] difference, discrepancy |
| ⇒ 詫異 | [ chà yì ] (adj) flabbergasted; astonished |
| ⇒ 雌雄異色 | [ cí xíong yì sè ] sexual coloration |
| ⇒ 大同小異 | [ dà tóng xiǎo yì ] almost similar, except slight differences |
| ⇒ 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 |
| ⇒ 二氯異三聚氰酸鈉 | [ èr lǜ yì sān jù qíng sūan nà ] sodium dichloroisocyanurate |
| ⇒ 怪異 | [ guài yì ] weird |
| ⇒ 詭異 | [ gǔi yì ] (adj) strange |
| ⇒ 基因染色體異常 | [ jī yīn rǎn sè tǐ yì cháng ] genetic chromosome abnormality |
| ⇒ 驚異 | [ jīng yì ] amazement |
| ⇒ 兩性異形 | [ lǐang xìng yì xíng ] sexual dimorphism |
| ⇒ 令人驚異 | [ lìng rén jīng yì ] surprisingly |
| ⇒ 奇花異草 | [ qí hūa yì cǎo ] (saying) very rarely seen, unusual |
| ⇒ 奇異 | [ qí yì ] fantastic, bizarre, odd, astonished |
| ⇒ 同量異位素 | [ tóng líang yì wèi sù ] nuclear isobar |
| ⇒ 亞硝酸異戊酯 | [ yà xiāo sūan yì wù zhǐ ] amyl nitrite |
| ⇒ 優異 | [ yōu yì ] (adj) exceptional |