▸ noun paper that is pasted in vertical strips over the walls of a room to provide a decorative or textured surface:
a roll of wallpaper
[count noun] an exclusive range of fabrics and wallpapers.
▪ an optional background pattern or picture on a computer or mobile phone screen.
▸ verb [with object] apply wallpaper to (a wall or room):
we were wallpapering a wall
(as noun wallpapering) he was planning to do some wallpapering this month
(as adjective wallpapered) the wallpapered wall behind the stairs.