An eggplant is a vegetable.

The statement "an eggplant is a vegetable" is true. Despite being commonly perceived as a vegetable due to its culinary uses, the eggplant is botanically regarded as a fruit, as it grows from the flowering part of the plant and contains seeds. However, in culinary terms, it is often used as a vegetable in various savory dishes, leading to its classification as a vegetable in everyday language.