Family sizes refer to the number of individuals that make up a household. Synonyms for family sizes include household composition, family structure, or family makeup. Other synonyms that can be used include household size, family members, or household count. Demographically, different family sizes are quantified and categorized according to different variables. For instance, small families comprise parents and one or two children, while large families have four or more children. In summary, the nomenclature used to describe different family sizes may vary depending on context, cultural norms, and statistical measures. However, they all refer to the number of people living in a household.