Hamilton
WordNet
noun
(1) The capital of Bermuda
(2) A port city in southeastern Ontario at the western end of Lake Ontario
(3) United States statesman and leader of the Federalists; as the first Secretary of the Treasury he establish a federal bank; was mortally wounded in a duel with Aaron Burr (1755-1804)
(4) United States toxicologist known for her work on industrial poisons (1869-1970)
(5) English beauty who was the mistress of Admiral Nelson (1765-1815)
(6) Irish mathematician (1806-1865)