WordNet (r) 3.0 (2006):

President Truman
    n 1: elected vice president in Roosevelt's 4th term; became 33rd
         President of the United States on Roosevelt's death in 1945
         and was elected President in 1948; authorized the use of
         atomic bombs against Japan (1884-1972) [syn: Truman,
         Harry Truman, Harry S Truman, President Truman]