A house is a home, building, or structure that functions as a habitat for humans or other creatures. The term house includes many kinds of dwellings ranging from rudimentary huts of nomadic tribes to complex structures composed of many systems. English-speaking people generally call any building they routinely occupy "home".
The social unit that lives in a house is known as a household. Most commonly, a household is a family unit of some kind, though households may be other social groups, organizations, or individuals.