The longest word in the English language is pneumonoultramicroscopicsilicovolcanoconioses!
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There was no punctuation until the 15th century.
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The onion is named after the Latin word 'unio' meaning large pearl.
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A legend suggests that clans of long ago that wanted to get rid of their unwanted people without killing them used to burn their houses down - hence the expression "to get fired."
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The dab of toothpaste you squeeze onto your toothbrush is called a "nurdle".
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Switching letters is called spoonerism. For example, saying "jag of Flapan", instead of "flag of Japan".
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