In everyday usage, a vegetable is any part of a plant that humans consume as part of a savory meal.
The term "vegetable" is somewhat arbitrary and largely defined through culinary and cultural tradition. It normally excludes other food derived from fruits, nuts, and cereal grains, including seeds such as pulses.
In everyday language, the words "fruit" and "vegetable" are mutually exclusive. "Fruit" has a precise botanical meaning, being a part that developed from the ovary of a flowering plant. This is considerably different from the word's culinary meaning. For example, while peaches, plums, and oranges are "fruit" in both senses, many items commonly called "vegetables," such as eggplants, bell peppers, and tomatoes, are botanically fruits.