Haw. Code R. § 15-20-2
As used in these rules, the following words and terms shall have the following meanings unless the context shall indicate another or different meaning or intent:
"Assessment area" means the areas of the properties deemed to specially benefit from a particular improvement with the improvement district;
"Assessment area district" means the properties deemed to specially benefit from a particular improvement within the improvement district;
"General benefits" mean those benefits flowing to the general public as a result of any improvement;
"Improvement district" means the area in which the improvements are to be constructed;
"Special benefits" mean those benefits resulting from the improvements, above and beyond the general benefits, which increase the market value of the property.
Haw. Code R. § 15-20-2