portière UK /ˌpɔːtɪˈɛə/US /poɹˈtjɛɹ/ noun2 •A hanging, such as a heavy curtain, placed over a door or doorway; a door curtain.Carefully unfolding it, he spread it on the floor. It proved to be a curtain or portière, beautifully stencilled with a design on roses. — 1913 •A car door. formsportieres · portières