is the upper corner of a flag next to the staff where a special design, such as a union, appears A square or rectangle set in the upper hoist corner of a flag
The four quarters of a flag are named cantons, especially the upper quarter of the hoist, that is, the upper left hand corner of the flag; the canton is sometimes also called the union
A canton is a political or administrative region in some countries, for example Switzerland. the Swiss canton of Berne. a name formerly used for Guangzhou, a large city in southern China. one of the areas that a country such as Switzerland is divided up into, that has limited political powers (from cantone, from canto; CANTEEN). Political subdivision of Switzerland, France, and some other European countries. Each of Switzerland's 26 cantons and half-cantons has its own constitution, legislature, executive, and judiciary. Five preserve the ancient democratic assembly, in which all citizens meet; the remaining 21 have a cantonal legislature with elective representatives and usually proportional representation. In France, the canton is a territorial and administrative subdivision of an arrondissement but not an actual unit of local government
A division of a shield occupying one third part of the chief, usually on the dexter side, formed by a perpendicular line from the top of the shield, meeting a horizontal line from the side