chún​chǐ

lips and teeth

唇齿 唇齒 chún​chǐ
variant 脣齒
lips and teeth
interdependent
extremely close relationship; used to describe partners or neighbors who are interdependent and share common interests
唇齿 唇齒 chún​chǐ
dentilabial
relating to or denoting a sound made with the lips and teeth

Frequency

Written text
0.475 per million

Sources

Frequency data
BCC Corpus (BLCU)