What are the opposite words for rabbets?

The word "rabbets" does not have many commonly used antonyms. The term is primarily used in woodworking to describe a groove or slot cut into a piece of wood to join it with another. Some possible antonyms could include "protrusion" or "projection," as these refer to a raised part of a surface rather than a groove. Another possible antonym could be "separate," as rabbets are used to join two pieces of wood together, while separating them would be the opposite action. However, since rabbets are a technical term with a specific meaning in woodworking, their antonyms may not be immediately clear.