Lexical peculiarities of American English

The variety of English spoken in the USA has received the name of American English. The term variant or variety appears most appropriate for several reasons. American English cannot be called a dialect although it is a regional variety, because it has a literary normalised form called Standard American (or American National Standard), whereas by definition given above a dialect has no literary form. Neither is it a separate language, as some American authors, like H.L. Mencken, claimed, because it has neither grammar nor vocabulary of its own. From the lexical point of view we shall have to deal only with a heterogeneous set of Americanisms.