In woodworking, refinishing refers to repairing or reapplying the wood finishing on an object. In practice, this may apply to the paint or wood finish top coat, lacquer, or varnish. The goal is traditionally aiming for an improved or restored and renewed finish.
In your home, this could be floors, trim, mantle, doors, cabinets, etc. Bringing your wood back to life can enhance the character that is uniquely its own.