一.Noun
vegetable (plural vegetables)
1.Any plant.
2.A plant raised for some edible part of it (leaves, roots).
3.(Metaph.) A person whose body or brain has been damaged so that he cannot interact with the surrounding environment.
二.Adjective
vegetable
1.Of or relating to plants.
2.Of or relating to vegetables.
爷爷可以是:grandpa /grandfather
参考资料:词典