Household/ˈhaʊshəʊld/ Definition 1 of 3Pro Tip 1/3Not Always Family The term 'household' can include roommates or non-relatives living together. Our household consists of three students sharing an apartment. Pro Tip 2/3Living Arrangement 'Household' stresses the living arrangement, not the building itself. Multiple households can reside in one large house. Pro Tip 3/3Size Variance Households can vary in size, from a single individual to many people. She lives alone, but her household is a happy one.