Re-fittings refer to the process of replacing or repairing components in a system or structure to restore its functionality or efficiency. There are various synonyms for re-fittings, including refurbishment, renovation, restoration, revamp, overhaul, and remodeling. The term refurbishment implies upgrading or modernizing an existing structure or system, while renovation refers to the process of restoring an old or run-down building or structure to its original condition. Restoration, on the other hand, involves bringing back something to its former glory or original design. Revamp and overhaul suggest making significant changes to a system or structure to improve its functionality or efficiency, while remodeling refers to the process of redesigning or reconstructing an existing structure or system.