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Be careful what you say.
Not too long ago, you wouldn't come across the word "unicorn" very often outside a kindergarten classroom.
But "unicorn" is just one of the numerous words that, thanks to a recent shift in meaning, gets used regularly in 2017 in headlines and on social media.
While most of these words have been around for years, it took this year for them to shoot into the mainstream and shape the way we talk about business, politics, and current events.
Here are six words that took on completely different meanings in 2017: