Supermarket Shelf

A shelf is a flat piece of wood, metal, or glass which is attached to a wall or to the sides of a cupboard. Shelves are used for keeping things on. See full entry. COBUILD Advanced English Dictionary.A gondola (usually pronounced /ɡɒnˈdoʊlə/ in this context) is a freestanding fixture used by retailers to display merchandise. Gondolas typically consist of a flat base and a vertical component featuring notches, pegboards, or slatwalls.Athin flat usually long and narrow piece of material (such as wood) fastened horizontally (as on a wall) at a distance from the floor to hold objects. b : one of several similar pieces in a closet, bookcase, or similar structure. c : the contents of a shelf the author of a shelf of best.