good evening,

Is there any method by which you can differentiate a fruit and a vegetable.

for example, how do you confirm if tomato is a fruit

Is there any characteristics by which you can define a fruit ?

A fruit develops from the flower of a plant, while the other parts of the plant are categorized as vegetables.
Fruits contain seeds, while vegetables can consist of roots, stems and leaves.

From a culinary perspective, fruits and vegetables are classified based on taste. Fruits generally have a sweet or tart flavor and can be used in desserts, snacks or juices.

Vegetables have a more mild or savory taste and are usually eaten as part of a side dish or main course.
tomatoes fit the definition of a fruit. However, they're still commonly referred to as vegetables because of their flavor profile.