勤奋
qín fèn · HSK 5
hardworking
💪 勤 = diligent + 奋 = exert; together: diligent exertion = hardworking
勤 (qín) means diligent or industrious; 奋 (fèn) means to exert oneself or strive. The compound stacks two effort-words to mean hardworking and diligent. Sound hook: qín fèn rhymes with in-fend, as in defending your work ethic.