‘遗漏’ (yí lù) means ‘oversight’ as a noun or ‘to omit’ or ‘to leave out’ as a verb. It combines two characters: 遗 (yí), meaning ‘to lose’ or ‘to leave behind’, and 漏 (lù), meaning ‘to leak’ or ‘to let slip through’. Together, they vividly evoke the idea of something slipping away unnoticed—like information, items, or responsibilities that are unintentionally missed. This word carries a neutral-to-slightly-negative tone and is commonly used in formal, academic, or professional contexts, such as reviewing documents, checking lists, or evaluating work.

It often appears in phrases like ‘避免遗漏’ (avoid omissions), ‘检查是否有遗漏’ (check for omissions), or ‘造成遗漏’ (cause an omission). While it can refer to physical objects, it’s more frequently applied to abstract things: facts, names, steps in a process, or data entries. Unlike casual terms like ‘忘了’ (forgot), ‘遗漏’ emphasizes unintentional exclusion due to carelessness or oversight—not deliberate omission.