A héng fú is a long, narrow banner displayed horizontally—typically hung across a street, above a doorway, or stretched between two poles at public events. The first character héng means 'horizontal' or 'across', indicating its orientation, while fú means 'strip' or 'piece (of cloth)', referring to the physical form. Together, they literally mean 'horizontal strip', capturing both shape and function.

This word is commonly used for official, celebratory, or promotional banners—such as those seen during national holidays, school graduations, or store openings. Unlike vertical banners (shù fú) or posters (hǎibào), héng fú emphasizes width over height and is usually made of durable fabric or plastic for outdoor use. It often bears slogans, greetings, or announcements in large, bold characters.