Definitions of Holmes:

noun: English geologist and supporter of the theory of continental drift (1890-1965)
noun: United States writer of humorous essays (1809-1894)
noun: United States jurist noted for his liberal opinions (1841-1935)
noun: a fictitious detective in stories by A. Conan Doyle
name: A surname (common: 1 in 1538 families; popularity rank in the U.S.: #145)