‘弯腰’ literally combines ‘弯’ (to bend, curve) and ‘腰’ (waist), forming a compound verb meaning ‘to bend at the waist’ — that is, to flex the torso forward from the hips while keeping the back relatively straight or slightly curved. It describes a common physical movement used in everyday activities like picking something up from the floor, tying shoelaces, gardening, or showing respect in formal or traditional contexts.

The verb is neutral in register and widely used across spoken and written Chinese. It can appear as a standalone verb (e.g., 他弯腰捡起了笔) or in serial verb constructions (e.g., 弯腰看地图). Unlike some posture verbs, ‘弯腰’ emphasizes intentional, controlled bending — not slouching or collapsing — and often implies purpose, humility, or physical effort.