glass noun, often attributive \ˈglas, ˈgläs\ : a hard usually transparent material that is used for making windows and other products : a drinking container made out of glass : the amount held by a glass container
passage noun pas·sage \ˈpa-sij\ : a long, narrow space that connects one place to another : a narrow space that people or things can move through : an act of moving or passing from one place or state to another