不必

不必 means 'need not' or 'do not have to.' It expresses that something is unnecessary or not required, often used to reassure or offer relief.

The character 不 (bù) means 'not,' and 必 (bì) means 'must' or 'necessarily.' Together, they form a negation of necessity, indicating that an action is optional or not required.

不必 is commonly used in daily conversations to ease someone's mind or suggest that something is not necessary. For example, it can be used when someone is worried about doing something, and you want to reassure them that it's okay to skip it. It’s also found in formal writing and spoken language as a polite way to indicate lack of obligation.