Considering the difference in the preparation of these vegetables, the vegetable broth is prepared using a clean vegetable that is well-trimmed. Considering vegetable stock, it is prepared using a clean vegetable that is untrimmed leaves, shoots, stalks, roots, skins, peels, and stems.
Though these two vegetables are really good additions in the kitchen, vegetable broth is usually prepared to serve as side dishes to add flavor to other food such as rice. Vegetable broth can also be used as a foundation base for a soup. On the other hand, vegetable stock is prepared to be used in gravy and main dishes.
In addition, the vegetable stock has more flavor than the vegetable broth. The vegetable broth seems less tasty because it is not seasoned as broth due to its function, while vegetable stock is more seasoned, and you can drink it on its own. Also, in preparation, broth has more meats than bones in it, while the stock has more bones than meats in it.