Definition: The word "annotate_assembly_ZZZ_hgap.conf" refers to a configuration file for an assembly tool, typically used in 3D printing or other 3D manufacturing processes to control the spacing between parts on a printed object. It typically includes settings like 'hgap' (hole gap) and 'zgap' (zero gap) for specifying how much the print should be separated along x, y, and z axes respectively. The file can also include parameters like 'scale', which controls the scaling of the printout to prevent overprinting or underprinting of parts.