Definitions of Darwin:

• noun:   provincial capital of the Northern Territory of Australia
• noun:   English natural scientist who formulated a theory of evolution by natural selection (1809-1882)
• name:  A male given name (rare: 1 in 7142 males; popularity rank in the U.S.: #583)
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #10786)