'数据库' (shùjùkù) literally means 'data warehouse' — combining 数 (shù, 'number/data'), 据 (jù, 'evidence/fact'), and 库 (kù, 'storehouse/warehouse'). In modern usage, it refers to an organized collection of structured information stored electronically, typically managed by a database management system (DBMS). It is fundamental in computing, web development, business analytics, and scientific research.

This term is widely used in technical, academic, and professional contexts in Chinese-speaking environments. While the characters individually carry classical meanings, their compound form is a direct calque from English 'database' and carries no colloquial or metaphorical sense — it’s strictly a technical noun. You’ll encounter it in IT documentation, university courses, software interfaces, and data-driven reports across China, Taiwan, and Singapore.