The United States does not have an official language, but about 80% of the population is native English.<br><br>The universality of English is derived from the historical background of British colonization. Since the first settlers arrived in the United States in the 17th century, American English has also been influenced by immigrants from West Africa, Germany, the Netherlands, Ireland, Spain, and other places, as well as native Americans.<br><br>As a result, there are a variety of accents and dialects throughout the United States, and American English may not be easy for tourists to understand.<br><br>Americans have their own unique slang, and you'll soon be familiar with the local terms buck (dollar), bail (quick departure), and raincheck (change of day).
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