‘标识’ (biāo shí) is a noun meaning ‘logo’, ‘symbol’, or ‘identifier’—a visual or conceptual marker used to represent, distinguish, or signal something. The first character 标 (biāo) means ‘mark’, ‘sign’, or ‘standard’, while 识 (shí) means ‘to recognize’ or ‘recognition’; together, they convey the idea of something designed to be recognized and understood at a glance. It’s commonly used for official signs, brand logos, safety symbols, map icons, and digital interface elements.

This word appears frequently in public spaces (e.g., subway stations, hospitals, campuses), product packaging, websites, and technical documentation. Unlike the more casual term 标志 (biāo zhì), which can also mean ‘symbol’ or ‘landmark’, 标识 emphasizes function—its purpose is identification rather than mere representation or symbolism. It’s neutral in register and widely accepted in both formal and everyday contexts.