There are obvious differences between fruits and vegetables, but the terms themselves do mean that there are even bigger differences than you may have initially understood. In fact, the terms come from two completely different industries.
Fruit is considered a botanical term, whereas vegetable is a culinary term, and yet the two of them come together to form a staple part of our diet. However, if you want to display your knowledge to others, then the actual explanation of the differences between the two does become far more involved.
Basically, a fruit is referred to as being a seed-bearing part of the plant that comes from the ovary of the flower. On the other hand, a vegetable is formed from other parts of the plant, including the leaves, the stems and even the roots.
What then makes it even more complicated is that people tend to associate fruit with being sweet in taste, and then you have fruits such as peppers, the tomato, and eggplant that are not actually sweet. As a result, they are viewed as being vegetables by different chefs around the world, even though that is not strictly true according to their botanical origins.