'万能' literally combines '万' (wàn), meaning 'ten thousand' and used idiomatically to mean 'all' or 'every', and '能' (néng), meaning 'able' or 'capable'. Together, they form an adjective meaning 'omnipotent' in a figurative, hyperbolic sense — not divine power, but extraordinary versatility or effectiveness. It's commonly used to describe tools, people, or solutions that seem to handle countless tasks effortlessly.

The term often carries a tone of admiration or gentle exaggeration — for example, calling a multi-tool '万能' highlights its wide range of functions, while calling someone '万能' suggests impressive competence across many domains. It appears frequently in advertising ('万能胶' — universal glue), tech reviews ('万能遥控器'), and casual praise ('她真是万能的妈妈!'). Though it can imply perfection, native speakers usually understand it as rhetorical emphasis rather than literal all-powerfulness.