随身 (suí shēn) is an adjective meaning 'carried on one’s person' or 'portable'—emphasizing that something is kept close at hand for immediate use or convenience. The character 随 means 'to follow' or 'to accompany', and 身 means 'body' or 'person'; together, they literally convey 'following the body', i.e., always with you wherever you go. It commonly modifies nouns like 钱包 (wallet), 电话 (phone), or 钥匙 (keys), describing items people habitually carry.

This term appears frequently in everyday contexts: travel announcements ('请保管好您的随身物品'), tech product descriptions ('随身Wi-Fi'), and safety instructions ('随身携带身份证'). Unlike general adjectives, 随身 typically precedes the noun it modifies and rarely stands alone. It carries a neutral, practical tone—neither formal nor colloquial—and is widely used across spoken and written Chinese.