夙兴夜寐 — Chinese idiom

Meaning

• to rise early and sleep late ; to work hard
• to study diligently
• to burn the candle at both ends

Character by character

• 夙sùdawn, early in the morning; previous; long-held
• 兴xīngto thrive, to prosper, to flourish
• 夜yènight, dark; under cover of night
• 寐mèisleep; asleep

Idioms sharing a character

• 夙夜匪懈 sù yè fěi xiè
• 人丁兴旺 rén dīng xīng wàng
• 多难兴邦 duō nàn xīng bāng
• 方兴未已 fāng xīng wèi yǐ
• 方兴未艾 fāng xīng wèi ài
• 望洋兴叹 wàng yáng xīng tàn
• 百废俱兴 bǎi fèi jù xīng
• 百废待兴 bǎi fèi dài xīng
• 兴利除弊 xīng lì chú bì
• 兴妖作怪 xīng yāo zuò guài

Data: CC-CEDICT (CC BY-SA 4.0); Unihan Database (Unicode License v3). Retrieved 2026-10-22.