Meaning of xiāo:
消
to diminish; to subside; to consume; to reduce; to idle away (the time); (after 不[bu4] or 只[zhi3] or 何[he2] etc) to need; to require; to take
Zhè chǎng fēngbào yǐjīng kāishǐ xiāotuì.
这场风暴已经开始消退。
The storm has already started to subside.
Wèi le bǎohù huánjìng, wǒmen yīnggāi jiǎnshǎo xiāohào.
为了保护环境,我们应该减少消耗。
To protect the environment, we should reduce consumption.
Tā xǐhuān zài wǔhòu xiāo mó shíjiān.
他喜欢在午后消磨时间。
He likes to idle away time in the afternoon.
Wèi le jiǎn shǎo zào yīn, wǒ men xū yào xiāo yīn zhuāng zhì.
为了减少噪音,我们需要消音装置。
To reduce noise, we need a silencer.