口
Pinyin: kǒu
mouth
Example sentence
张开口，让我看看。
Zhāng kāi kǒu, ràng wǒ kànkan.
Open your mouth, let me see.
What 口 means
口 (kǒu) is a Chinese word meaning “mouth”. It belongs to the Body & Health topic and appears at HSK 3 (and again in HSK 4), so it is one of the words worth learning early when you study Chinese.