A "unit of weight" refers to a specific amount of measurement used to determine the heaviness of objects. There are various synonyms for this term, including "mass unit", "weight unit", and "measuring unit of weight". Other possible alternatives include "metric measure of weight", "unit of mass measure", and "standard weight unit". In addition, some other terms that can be used to refer to a "unit of weight" include "weight measure", "poundage", and "heft". Depending on the context, some of these synonyms may be more appropriate than others. Regardless of which term is used, however, they all refer to the same basic concept of measuring the heaviness or mass of an object.