臭 (chòu) means “stench; smelly; to smell (bad); repulsive; loathsome; terrible; bad; severely; ruthlessly; dud (ammunition)”. It is an HSK 5 Chinese character in the HSK 3.0 vocabulary.
这些垃圾放了好几天,已经开始发臭了。
Zhèxiē lājī fàng le hǎo jǐ tiān, yǐjīng kāishǐ fā chòu le.
This garbage has been sitting for several days and has started to stink.
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