牢 láo 🔊 pen; fold (for livestock) HSK 67 strokes + Review this word Meanings láo (literary) pen; fold (for livestock)prison; jailfirm; secure; fast Words with 牢 牢牢 láo láo firmly HSK 7–9 牢固 láo gù firm HSK 7–9 牢房 láo fáng jail cell 牢记 láo jì to keep in mind; to remember HSK 7–9 牢骚 láo sāo discontent HSK 7–9 大牢 dà láo prison 发牢骚 fā láo sāo to whine 坐牢 zuò láo to be imprisoned 牢狱 láo yù prison 地牢 dì láo prison 牢靠 láo kào firm and solid 牢笼 láo lóng cage