€ is the euro sign , the official currency of eurozone.¥ is the yen and yuan sign, ¥, is a currency sign used for the Japanese yen and the CHINESE yuan currencies when writing in Latin scripts. $ is the dollar sign , used to indicate the units of various currencies around the world.¢ is the cent which is a monetary unit of many national currencies that equals 1⁄100 of the basic monetary unit. π is the number π is a mathematical constant. It is defined as the ratio of a circle's circumference to its diameter, and it also has various equivalent definitions.® is the registered TRADEMARK symbol, and a typographic symbol that provides notice that the preceding word or symbol is a trademark or service mark that has been registered with a national trademark office.© or the word "Copyright" or abbreviation "Copr."; the year of first publication of the copyrighted work; and. identification of the OWNER of the copyright, either by NAME, abbreviation, or other DESIGNATION by which they are generally known.£ is the pound sign and is the symbol for the pound sterling – the currency of the United Kingdom and previously of Great Britain and of the Kingdom of England.