Answer: cantilever

AnswerCrossword Clue
CANTILEVERBridge-builder's form.
CANTILEVERType of bridge
CANTILEVERKind of arch or bridge
CANTILEVERBuilding feature
cantilevera kind of bridge / to project or support like a cantilever
cantileverA long projecting beam or girder fixed at only one end, used chiefly in bridge construction
cantileverA long bracket or beam projecting from a wall to support a balcony, cornice, or similar structure