A plant or part of a plant used as food, typically as an accompaniment to meat or fish, such as a cabbage, potato, carrot, or bean. She added a variety of vegetables to the stew to enhance its flavor.
A person who is incapable of normal mental or physical activity, especially through brain damage. After the accident, he was left in a state where he was considered a vegetable.
Slang. A person who leads a dull, inactive, or unadventurous life; someone lacking energy or initiative. Since he started working nights, he's turned into a complete vegetable at the weekends.