重复 (chóng fù) is a verb meaning 'to repeat' — to do or say something again, often intentionally or sometimes unintentionally. The character 重 means 'again' or 're-' (as in chóng xīn, 'again'), while 复 means 'to return', 'to restore', or 'to repeat' (as in fù zhì, 'to copy'). Together, they form a compound verb emphasizing the act of doing something a second (or further) time. It’s commonly used for actions like repeating instructions, replaying audio, re-reading text, or redoing a task.

This word appears frequently in educational, technological, and daily life contexts — for instance, when asking someone to repeat what they said ('qǐng nǐ chóng fù yí xià'), or describing redundant processes ('zhè ge bù zhòu shì chōng fù de', 'this step is redundant'). Unlike the more casual 说一遍 (say once more), 重复 carries a neutral-to-formal tone and often implies exact repetition rather than paraphrasing.