唇齿

Traditional form:

唇齒

Pinyin (reading):

chúnchǐ

Definitions:

• lit. lips and teeth (idiom); fig. close partners
• interdependent

Characters:

• 唇 - lips
• 齿 - teeth; gears, cogs; age

Traditional characters:

• 唇 - lips
• 齒 - teeth; gears, cogs; age