jau5 haau6有效

Jyutpingjau5 haau6
Yaleyáuh haauh
形容詞Common

Definition

Effective; able to achieve the expected or desired result.

neutraldescriptions

How it's used

Beyond the meaning of being effective, this term is the standard way to describe something as valid or legally binding. It is frequently used in administrative contexts, such as checking if a document, coupon, or ticket has expired. When referring to a person's ability to get things done, people often prefer using 有用 instead.

Common mistake

Learners often confuse this with 有用, but 有效 specifically focuses on the success of a process or the validity of a status, whereas 有用 is broader and refers to general utility or helpfulness.

Grammar color guide

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