牙齿

牙齿 refers to the hard, white structures in the mouth used for biting and chewing food. It is a general term that includes all the teeth in the mouth, both upper and lower.

The character 牙 means 'tooth' and 齿 also means 'tooth,' making this a compound word emphasizing the concept of teeth. The use of two characters for the same meaning reinforces the importance of teeth in Chinese culture and language.

In daily life, 牙齿 is commonly used in medical contexts, dental discussions, and general conversation about oral health. Expressions like 牙齿健康 (yá chǐ jiàn kāng) mean 'dental health,' and 牙齿美白 (yá chǐ bái měi) means 'tooth whitening.' Proper dental care is highly valued in Chinese society.