Fake news is what it sounds like, stories that are published that are not based on facts. The aim of most fake news stories is to make money. Fake news stories have exciting titles that lure people to click on a link--which makes money. In print, sensational headlines sell tabloids.
The terms misinformation and disinformation can also be used instead of fake news. Misinformation is false or incorrect information. Disinformation is false or incorrect information that is deliberately spread with a goal in mind, such as propaganda.