admiral
n//ˈædməɹl//amiral
(military) The appointed commander of a navy, regardless of formal title. [1440]
(military) A high rank in the British and American Navies, NATO grade OF-9, equivalent ranks in other navies, in coast guards, etc.
(zoology) Any of several species of nymphalid butterflies of the genera Kaniska, Limenitis and Vanessa. [1799]