What do you mean by cross selling?

What do you mean by cross selling ?

Cross-selling is the process of suggesting related products to customers based on their browsing experiences or shopping trends.

The best example you can find if you visit Burger King and ask for a burger. They would ask you if you like to add some extra cheese to your burger. This is a perfect cross-selling example. This way cross-selling helps online entrepreneurs to increase more sales and gain better profit.