If you ask a botanist, the answer is surprisingly simple. A fruit is the part of a plant that develops from a flower and contains seeds. Think apples, oranges, and that suspiciously juicy cucumber.
A vegetable, on the other hand, is any other part of the plant. Roots (carrots), stems (celery), leaves (spinach), and even flower buds (broccoli) are all vegetables. By this strict rule, a tomato is 100% a fruit. So is a bell pepper, a pumpkin, and even an ear of corn.
But wait—doesn’t that mean a cucumber is a fruit? Yep. And a zucchini? Absolutely. Suddenly, your salad is looking a whole lot more like a fruit bowl. It’s a fun party trick, right?