Flag is normally a piece made out of cloth or silk which represents various cultures, countries, institutions or other organizations. In case of Army, Navy or other Military establishments, Flags are used for signaling whereas when there is a National Flag, it denotes a country. Sometimes a flag is used for the purpose of decoration. A Flag is known by the color or the graphic it carries. Normally the Flags are of rectangular shape but in some cases, you get to see flags of other shapes too, including triangles. Sometimes Flags are being used for messaging or advertising purpose too. Whatever the shape might be the ultimate objective is that the Flag has to fly. The study of Flag is called Vexilology which has been derived from A Latin word. When you see a flag, the first thing that comes to mind is the National Flag, the most important of all the flags in use and to which pride and honor is attached. The design of a flag is either painted or embroidered and carries a meaning. War Flags are normally being used by Armed forces of some countries which are again different from National flags. In the earlier days, war flags were being used for military co-ordination which subsequently is being used in the battlefield. War flags are also seen on war ships. There are some International flags too, which has common acceptance amongst all the countries such as United Nations, Olympic flags and others. Apart from the above, there are many other flags which have their own importance such as flag at sea, religious flags, linguistic flags etc. When flags are used for signaling it is called Semaphore. Signaling is performed by two flags and each position of the flag denotes a particular message. This job is being done by a particularly trained person called signalman.

A Flag is known by the color or the graphic it carries. Normally the Flags are of rectangular shape but in some cases, you get to see flags of other shapes too, including triangles. Sometimes Flags are being used for messaging or advertising purpose too. Whatever the shape might be the ultimate objective is that the Flag has to fly. The study of Flag is called Vexilology which has been derived from A Latin word.