A grocery store, grocery or grocery shop, is a store primarily engaged in retailing a general range of food products, which may be fresh or packaged. In everyday U.S. usage, however, "grocery store" is a synonym for supermarket, and is not used to refer to other types of stores that sell groceries.

Cleaning is the process of removing unwanted substances, such as dirt, infectious agents, and other impurities, from an object or environment. Cleaning occurs in many different contexts, and uses many different methods. Several occupations are devoted to cleaning

Once part of an elaborate hierarchy in affluent homes and profitable businesses, today a maid may be the only domestic worker that upper and even middle-income households can afford, as a household domestic-help employee.

Technical assistance, form of aid given to less-developed countries by international organizations such as the United Nations (UN) and its agencies, individual governments, foundations, and philanthropic institutions. Its object is to provide those countries with the expertise needed to promote development.