A supporting structure is a type of construction that provides stability and strength to a building or other structure. The term can refer to a variety of components, such as a BUTTRESS (8 letters), which is an architectural feature that helps support the walls of a building; a TRUSS (5 letters), which is a structural FRAMEWORK made up of connected elements; a LEG (3 letters), which is a vertical support for a structure; a PILLAR (6 letters), which is a vertical support for a roof or arch; a FRAMEWORK (9 letters), which is a structural system that supports a building; and an ABUTMENT (8 letters), which is a masonry support that holds up an arch or bridge.