识别 (shíbié) is the standard, neutral verb for 'identify' or 'recognize' — used in both everyday situations (recognizing a face) and technical contexts (image recognition). Compared to 认 (rèn), which is more colloquial and often used for recognizing people or written characters, 识别 is more formal and broader. Unlike 鉴定 (jiàndìng), which implies expert appraisal or authentication, 识别 simply means to identify by features.