American English (variously abbreviated AmE, AE, AmEng, USEng, en-US[1]), also known as United States English or U.S. English, is a set of dialects of the English language used mostly in the United States. Approximately two thirds of native speakers of English live in the United States.
English is the most common language in the United States. Though the U.S. federal government has no official language, English is considered the de facto language of the United States due to its widespread use. English has been given official status by 30 of the 50 state governments
The use of English in the United States was inherited from British colonization. The first wave of English-speaking settlers arrived in North America in the 17th century. During that time, there were also speakers in North America of Spanish, French, Dutch, German, Norwegian, Swedish, Scots, Welsh, Irish, Scottish Gaelic, Finnish, Russian (Alaska) and numerous Native American languages.
The process of coining new lexical items started as soon as the colonists began borrowing names for unfamiliar flora, fauna, and topography from the Native American languages. Examples of such names are opossum, raccoon, squash and moose (from Algonquian).
The rise of capitalism, the development of industry and material innovations throughout the 19th and 20th centuries were the source of a massive stock of distinctive new words, phrases and idioms.
Already existing English words —such as store, shop, dry goods, haberdashery, lumber— underwent shifts in meaning; some —such as mason, student, clerk, the verbs can (as in "canned goods"), ship, fix, carry, enroll (as in school), run (as in "run a business"), release and haul— were given new significations, while others (such as tradesman) have retained meanings that disappeared in England.