25 Words That Don’t Mean What They Used To

View of the Oxford American College dictionary taken in Washington on November 16, 2009. The New Oxford American Dictionary named "unfriend" -- as in deleting someone as a friend on a social network such as Facebook -- its word of the year on Monday. Oxford University Press USA, in a blog post, said "unfriend," a verb, had bested netbook, sexting, paywall, birther and death panel for the honor. "Unfriend has real lex-appeal," said Christine Lindberg, senior lexicographer for Oxford?s US dictionary program. ( NICHOLAS KAMM/AFP/Getty Images)

Spinning out of his conversation with linguist Susanna Janssen, Nick Digilio shares 25 words that don’t mean what they used to.

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