承办 means 'to undertake' or 'to be responsible for organizing or managing something', especially a formal event, project, or official task. The character 承 (chéng) conveys 'to receive', 'to accept responsibility', or 'to inherit', while 办 (bàn) means 'to handle', 'to manage', or 'to carry out'. Together, they emphasize taking on and executing duties with accountability — often in professional, institutional, or governmental contexts.

This verb is commonly used when assigning or describing organizational roles: for example, a company may 承办 an international conference, or a university may 承办 a national academic competition. It implies authority, capability, and commitment — not just participation, but primary responsibility for planning, coordination, and execution. It is rarely used for casual or personal tasks (e.g., you wouldn’t say 承办 dinner); instead, it appears in formal announcements, contracts, news reports, and administrative documents.