扶手 literally combines 扶 (fú), meaning 'to support' or 'to hold up', and 手 (shǒu), meaning 'hand'. Together, they form a compound noun referring to a horizontal bar or rail designed for people to hold onto for support, balance, or safety. It is commonly found on staircases, escalators, buses, trains, wheelchairs, and furniture like chairs or sofas.

The word emphasizes function over form: any structure intended specifically for hand support in daily movement or seating can be called a 扶手. While often made of metal, wood, or plastic, the term focuses on purpose—not material or design. In architecture and public infrastructure, 扶手 is essential for accessibility and safety, especially for elderly or mobility-impaired individuals. It may also appear in medical or rehabilitation contexts when describing assistive equipment.