examples of armchairs 
Large deep upholstered armchair, usually made of leather.
Armchair with curved runners to rock on.
Armchair with a tubular metal frame and whose back and seat are made of leather.
Upholstered armchair with a cushioned seat.
Wooden 18th-century armchair with a curved back and armrests that curve outward.
Wooden armchair with a canvas back and seat that folds up in the middle.