以 yǐ
以(yǐ)means “以 = 'with, by, take … as' — a formal coverb of means; often 以 A 为 B 'take A as B'”. 以 is a written-style coverb meaning 'by means of / with'. Formation: 以 + 名词 + 为 + 名词 / 以 + 方式 + 动词(书面)
以 = 'with, by, take … as' — a formal coverb of means; often 以 A 为 B 'take A as B'
HSK5Formation
以 + 名词 + 为 + 名词 / 以 + 方式 + 动词(书面)
Explanation
以 is a written-style coverb meaning 'by means of / with'. Its most common frame is 以 A 为 B ('take A as B', 'regard A as B'), e.g. 以…为主 = mainly, with … as the main part. It also introduces a manner: 以 + [way] + verb.
Examples
Note
Formal/written; in speech 用 or 拿 often replaces it. Fixed frame 以…为… is very common.
FAQ
以 — what does it mean and how is it used?
以 = 'with, by, take … as' — a formal coverb of means; often 以 A 为 B 'take A as B'. 以 is a written-style coverb meaning 'by means of / with'. Its most common frame is 以 A 为 B ('take A as B', 'regard A as B'), e.g. 以…为主 = mainly, with … as the main part. It also introduces a manner: 以 + [way] + verb.
以 — how do you form it?
以 + 名词 + 为 + 名词 / 以 + 方式 + 动词(书面)
以 — any usage notes?
Formal/written; in speech 用 or 拿 often replaces it. Fixed frame 以…为… is very common.