牢
láo
prison (as in 坐牢)
Every meaning
láo
- prison (as in 坐牢)
- (archaic) animal for sacrifice
- firm; secure
- (slang) affectionate nickname prefix (as in 牢大)
Words with 牢
Meanings are from Mandarin The Wild’s own dictionary. Levels follow the official HSK word list (the exam’s 2025 syllabus, levels 7–9 shown together).