Usage of 须 (xū)
The character 须 is commonly used as a modal verb meaning "must" or "need to." It expresses necessity or obligation and is often found in formal or written Chinese. For example, in instructions, rules, or official notices, 须 indicates that something is required.
Common Collocations
- 须提前 (xū tíqián): must do in advance
- 须携带 (xū xiédài): must carry/bring
- 须知 (xūzhī): notice, important information
Notes
须 is more formal than 要 or 得 and is often used in official documents or announcements. It should not be confused with the noun 须 meaning "beard," which is less common in modern usage. When used as a verb, it always precedes the verb it modifies and does not stand alone.
Avoiding Confusion
Do not confuse 须 (must) with 需 (xū), which also means "need" but is more neutral and less formal. 须 carries a stronger sense of obligation.