The term 'HOOVER OR ASWAN' is a crossword solution for the job description 'DAM', which is a three letter acronym. A DAM is a structure built to contain the flow of water, and the two solutions, Hoover and Aswan, refer to two famous dams. The Hoover DAM is located on the Colorado River in the United States, and was built in the 1930s to provide hydroelectric power and water storage. The Aswan DAM is located on the Nile River in Egypt, and was built in the 1960s to control flooding and provide irrigation and hydroelectric power.