Man of war

A man of war (also man-of-war, man-o'-war or simply man) is a naval ship of the larger sizes, i.e. a frigate or a ship of the line, namely a sailing vessel armed with the maximum capacity of guns.

The Portuguese man o' war is a stinging hydrozoan related to the jellyfish.

Man O' War was a racehorse.

Man O'War Cay is also the name of an island in the Bahamas, a part of the Abacos near Marsh Harbour, famous for boat-building.