A variety back or armrests is called a stool, or when raised up, a bar stool (adults) or high chair (young children). A chair with arms is an armchair and with folding action and inclining footrest, a recliner. A permanently fixed chair in a train or theater is a seat or airline seat when riding, it is a saddle and bicycle saddle, and for an automobile, a car seat or infant car seat. With wheels, it is a wheelchair and when hung from above, a swing.