could be written in Arabic or English in the following format: Serbia Serbian postal addresses conform to rules similar to continental European rules: In addition to 5-digit postal code, another line can be added containing PAK, a six-digit number which encodes the town, street and house number section. Singapore In Singapore, SingPost recommends the following format for addresses: Generally, the last line SINGAPORE is omitted when posting within the country. Addresses are usually written in the English language. Slovakia Common format in Slovakia: Postal codes are in the format "### ##" (i.e. 851 01 = Bratislava 5). Street numbers can be written as orientation numbers (related to street) or descriptive numbers (unique within the town) or as a combination separated by a slash (descriptive/orientation). Descriptive numbers are also used within small villages that do not have named streets. If the delivery is intended exclusively for a specific person at a company site, the address should begin with the individual's name and the company name should follow. The standard format of addresses enables anyone at the company to receive the delivery. http://www.posta.sk/potrebujem/spravne-napisat-adresu ("How to write addresses correctly", in Slovak, with pictures) Slovenia Slovenia uses a four-digit postal number. The first digit indicates the area: 1xxx for Ljubljana 2xxx for Maribor 3xxx for Celje 4xxx for Kranj 5xxx for Nova Gorica 6xxx for Koper 7xxx not used 8xxx for Novo Mesto 9xxx for Murska Sobota The simpler the code, the bigger the locality: 1000 Ljubljana, 2000 Maribor (big cities); 1310 Ribnica, 9250 Gornja Radgona (mid-sized towns); 4263 Bohinjska Bela, 8262 Krška vas (smaller settlements, including villages). Some cities have more than one post office, thus having multiple postcodes (usually in the x1xx format). For example, Ljubljana which has a "general" postcode 1000, also has additional ones, ranging from 1101 to 1133 (for some reason, however, omitting 1103 and 1105), Kamnik has 1240 and 1241, etc. Albeit they exist, it is not necessary to use them - usually the "general" postcodes are used. The abbreviations are: g. for gospod (Mr), ga. for gospa (Mrs), and gdč. for gospodična (Miss) - all always capitalized if in the beginning of the line. Numbers can have a suffix like A, B, C, etc. Common abbreviations are: c. for cesta (Street), and ul. for ulica (Road) - both always capitalised if in the beginning of the line. Bigger towns have special postcodes for PO Boxes in the