嘴牢

Traditional form:

嘴牢

Pinyin (reading):

zuǐláo

Definitions:

• tight-lipped

Characters:

• 嘴 - mouth, lips
• 牢 - pen, prison, stable; fast, firm, secure

Traditional characters:

• 嘴 - mouth, lips
• 牢 - pen, prison, stable; fast, firm, secure