图书馆 (túshūguǎn) literally means 'picture-book-building' — combining 图 (tú, 'picture' or 'map'), 书 (shū, 'book'), and 馆 (guǎn, 'hall' or 'institution'). Historically, it referred to places housing classical texts and illustrated manuscripts; today it denotes any public or institutional facility where books, periodicals, digital resources, and other materials are collected, organized, and made available for reading, study, or borrowing. Libraries in China range from small community branches to massive national institutions like the National Library of China in Beijing.

The word is neutral in register and widely used across formal and informal contexts — whether asking for directions ('Where is the library?'), writing an academic paper, or telling a child about after-school activities. It’s always a countable noun, and typically preceded by classifiers like 一 (yī) or specific ones like 座 (zuò) when emphasizing structure ('a library building'). Unlike English, Chinese doesn’t use articles, so you’ll often hear it without modifiers unless specifying definiteness or quantity.