ribs — one of a series of curved bones that are articulated with the vertebrae and occur in pairs, 12 in humans, on each side of the vertebrate body, certain pairs being connected with the sternum and forming the thoracic wall.
staffs — a group of persons, as employees, charged with carrying out the work of an establishment or executing some undertaking.
staves — a composition of plaster and fibrous material used for a temporary finish and in ornamental work, as on exposition buildings.
underpinnings — a system of supports beneath a wall or the like.
vices — any of various devices, usually having two jaws that may be brought together or separated by means of a screw, lever, or the like, used to hold an object firmly while work is being done on it.