有效

yǒuxiào

adjective HSK 4 #2,060

Meanings

HSK 3

这个方法非常有效。

Zhège fāngfǎ fēicháng yǒuxiào.

This method is very effective.

HSK 4

护照的有效期是十年。

Hùzhào de yǒuxiàoqī shì shí nián.

The passport is valid for ten years.

HSK 5

我们需要找到一个有效的解决方案。

Wǒmen xūyào zhǎodào yí gè yǒuxiào de jiějué fāng'àn.

We need to find an effective solution.

usage

有效期 means 'validity period' - very common on documents, medicine, food packaging. The opposite is 无效 (invalid/ineffective).

有 yǒu

效 xiào