Many of us believe that tomatoes, peppers, and cucumbers are vegetables. But technically speaking, all of them are fruits. The only difference is that they are used as vegetables. Then, what is the difference between fruits and vegetables? The debate of fruit vs. vegetable has been going on for a long time, with botanists strongly demanding the status of fruits for tomatoes, cucumbers, peppers, and many more, which are usually classified as vegetables in the culinary sense. In order to understand the difference between fruits and vegetables, we must have a basic understanding about them.