Standard English (SE) is any form of the English language that is accepted as a national norm in a particular English-speaking country. In the British Isles, particularly in England and Wales, it is often associated with: the "Received Pronunciation" accent (there are several variants of the accent) and UKSE (United Kingdom Standard English), which refers to grammar and vocabulary. In Scotland the standard is Scottish Standard English. In the United States it is generally associated with the General American accent and in Australia with General Australian.
Although Standard English is generally the most formal version of the language, a range of registers exists within Standard English, as is often seen when comparing a newspaper article with an academic paper, for example. A distinction also should be drawn between spoken and written standards. Spoken standards are traditionally looser than their written counterparts, and quicker to accept new grammatical forms and vocabulary. The various geographical varieties form a generally accepted set of rules, often those established by grammarians of the 18th century.
English originated in England during the Anglo-Saxon period, and is now spoken as a first or second language in many countries of the world, many of which have developed one or more "national standards". English is the first language of the majority of the population in a number of countries, including the United Kingdom, the United States, Canada, Ireland, Australia, New Zealand, Jamaica, Trinidad and Tobago, the Bahamas and Barbados and is an official language in many others, including; India, Pakistan, the Philippines, South Africa and Nigeria.