'奠基' literally combines 奠 (diàn), meaning 'to lay, to establish ceremonially', and 基 (jī), meaning 'foundation' or 'base'. Together, it signifies the formal, often symbolic act of laying the first stone or establishing the essential groundwork for a major project—especially buildings, institutions, or long-term initiatives. It carries a sense of solemnity, importance, and forward-looking commitment.

This verb is commonly used in official, public, or ceremonial contexts: construction projects, founding of schools or companies, launching of national policies, or commemorating historical milestones. While it can appear in written reports or speeches, it rarely occurs in casual daily conversation. It often appears with objects like '仪式' (ceremony), '工程' (project), or '事业' (undertaking), and frequently takes time-related adverbials such as '正式' (formally) or '隆重地' (grandly).