Interesting piece in the Washington Post:

Fake news has a real meaning — deliberately constructed lies, in the form of news articles, meant to mislead the public. For example: The one falsely claiming that Pope Francis had endorsed Donald Trump, or the one alleging without basis that Hillary Clinton would be indicted just before the election.

But though the term hasn’t been around long, its meaning already is lost. Faster than you could say “Pizzagate,” the label has been co-opted to mean any number of completely different things: Liberal claptrap. Or opinion from left-of-center. Or simply anything in the realm of news that the observer doesn’t like to hear.

“The speed with which the term became polarized and in fact a rhetorical weapon illustrates how efficient the conservative media machine has become,” said George Washington University professor Nikki Usher.