腰带 (yāo dài) literally means 'waist belt' — 腰 (yāo) means 'waist' and 带 (dài) means 'belt' or 'strip'. Together, they refer to a narrow, flexible band worn around the waist to hold up pants, secure clothing, or serve as a fashion accessory. It’s a common everyday item in both formal and casual dress.

This word is neutral in register and used across all age groups and contexts — from describing functional belts on uniforms or workwear to decorative leather or fabric belts paired with outfits. Unlike broader terms like 带子 (dài zi, 'strip' or 'band'), 腰带 specifically denotes a belt designed for the waist, not other body parts or non-wearable uses. It appears frequently in shopping, clothing, and personal care contexts.