A 'kuài jié jiàn' (shortcut key) is a combination of keyboard keys—such as Ctrl+C or Cmd+Tab—that performs a command instantly, bypassing menus or multiple clicks. The characters reflect this function: 'kuài' means 'fast', 'jié' means 'convenient' or 'expeditious', and 'jiàn' means 'key'. Together, they literally convey 'a fast-and-convenient key', emphasizing speed and efficiency in digital interaction.

This term is used almost exclusively in computing contexts—desktop software, web browsers, operating systems, and coding environments. It’s common in technical documentation, user guides, and everyday conversation among Chinese-speaking computer users. While 'shortcut' alone can be translated as 'rùn lù' (route) or 'jiǎn dān fāng shì' (simple method), 'kuài jié jiàn' specifically refers to keyboard-based shortcuts—not touch gestures, voice commands, or toolbar icons.