| 夙愿以偿 | sù yuàn yǐ cháng | a long-cherished ambition is realized |
| 多年以来 | duō nián yǐ lái | for many years (in the past) |
失之毫厘，
谬以千里 | shī zhī háo lí ,
miù yǐ qiān lǐ | a tiny lapse can lead to a huge mistake (idiom); a minor discrepancy leading to enormous losses |
失之毫厘，
差以千里 | shī zhī háo lí ,
chà yǐ qiān lǐ | a tiny lapse can lead to a huge mistake (idiom); a minor discrepancy leading to enormous losses |
| 孜孜以求 | zī zī yǐ qiú | diligent and tireless (idiom) |
| 学以致用 | xué yǐ zhì yòng | to study sth to apply it; study for practical applications |
| 宽以待人 | kuān yǐ dài rén | to be lenient with others (idiom) |
差之毫厘，
谬以千里 | chā zhī háo lí ,
miù yǐ qiān lǐ | the slightest difference leads to a huge error (idiom); a miss is as good as a mile |
| 巴以 | Bā Yǐ | Palestinian-Israeli (relations) |
| 年以来 | nián yǐ lái | since the year... |
幼吾幼，
以及人之幼 | yòu wú yòu ,
yǐ jí rén zhī yòu | to care for other's children as one's own |
| 引以为傲 | yǐn yǐ wéi ào | to be intensely proud of sth (idiom) |
| 引以为憾 | yǐn yǐ wéi hàn | to consider sth regrettable (idiom) |
| 从今以后 | cóng jīn yǐ hòu | henceforth |
| 忘乎所以 | wàng hū suǒ yǐ | to get carried away; to forget oneself |
| 快速以太网络 | kuài sù yǐ tài wǎng luò | Fast Ethernet |
| 情何以堪 | qíng hé yǐ kān | how can this be endured! (idiom) |
| 忧苦以终 | yōu kǔ yǐ zhōng | worried to death (idiom) |
| 拭目以待 | shì mù yǐ dài | lit. to wipe one's eyes and wait (idiom); to wait and see |
| 持之以恒 | chí zhī yǐ héng | to pursue unremittingly (idiom); to persevere |
| 挟天子以令天下 | xié tiān zǐ yǐ lìng tiān xià | (expr.) hold the feudal overlord and you control the whole country |
| 挟天子以令诸侯 | xié tiān zǐ yǐ lìng zhū hóu | (expr.) hold the feudal overlord and you control his vassals |
| 授人以柄 | shòu rén yǐ bǐng | to hand someone the swordhilt (idiom); to give someone a hold on oneself |
授人以鱼不如授人
以渔 | shòu rén yǐ yú bù rú shòu rén yǐ yú | give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime; knowledge is the best charity |
| 掉以轻心 | diào yǐ qīng xīn | treat sth lightly; to lower one's guard |
| 撒哈拉以南 | Sā hā lā yǐ nán | sub-Saharan |
| 撒哈拉以南非洲 | sā hā lā yǐ nán Fēi zhōu | Sub-Saharan Africa |
| 数以亿计 | shù yǐ yì jì | countless; innumerable |
| 数以百计 | shù yǐ bǎi jì | hundreds of |
| 数以万计 | shù yǐ wàn jì | tens of thousands; numerous |
| 文以载道 | wén yǐ zài dào | words of truth; moral expressed in words; written article explaining a moral |
星星之火，
可以燎原 | xīng xing zhī huǒ ,
kě yǐ liáo yuán | a single spark can start a huge blaze (idiom); an insignificant cause can have a massive effect |
| 是以 | shì yǐ | therefore; thus; so |
| 有史以来 | yǒu shǐ yǐ lái | since the beginning of history |
| 有生以来 | yǒu shēng yǐ lái | since birth; for one's whole life |
| 欺以其方 | qī yǐ qí fāng | deceived by a pretense of reason (idiom) |
| 此时以前 | cǐ shí yǐ qián | heretofore |
| 民以食为天 | mín yǐ shí wéi tiān | Food is the God of the people. (idiom); People view food as the primary need.; Food first, ethical niceties second |
没有规矩，
何以成方圆 | méi yǒu guī jǔ ,
hé yǐ chéng fāng yuán | without rules, how can anything be done (idiom); one must follow some rules |
| 濯锦以鱼 | zhuó jǐn yǐ yú | to make the ugly beautiful (idiom) |
| 无以为生 | wú yǐ wéi shēng | no way to get by |
| 物以稀为贵 | wù yǐ xī wéi guì | highly valuable due to rarity (idiom) |
| 物以类聚 | wù yǐ lèi jù | similar things come together (idiom); like draws like; Birds of a feather flock together. |
物以类聚，
人以群分 | wù yǐ lèi jù ,
rén yǐ qún fēn | Similar things group together, similar people fit together (idiom); Birds of a feather flock together. |
| 相濡以沫 | xiāng rú yǐ mò | to moisten with spittle (idiom); sharing meager resources; mutual help in humble circumstances |
| 绳之以法 | shéng zhī yǐ fǎ | to punish according to the law; to bring to justice |
| 美以美 | měi yǐ měi | Methodist (Christian sect) |
| 美国以外 | Měi guó yǐ wài | except for the US |
| 习以成俗 | xí yǐ chéng sú | to become accustomed to sth through long practice |
| 习以成性 | xí yǐ chéng xìng | deeply ingrained; steeped in |
