When the word "very" is attached to a noun it becomes an adjective. Its meaning varies depending on the context of the sentence. Here are a couple of examples from dictionary.com: "That is the very item we want." Here, "very" means specific or particular. Example 2: "The very thought of it is distressing." Here, "very" means mere. When used as an adverb attached to other adverbs and adjectives, "very" means in high degree or extremely. Examples: very tall...., very pretty...., very smart. Hope this helped a little. :)

As an adjective it has a completely different meaning. In fact it has several different, archaic meanings according to Dictionary.com: Adjective, ( Obsolete) verier, veriest. 3. precise; particular: That is the very item we want. 4. mere: The very thought of it is distressing. 5. sheer; utter: He wept from the very joy of knowing he was safe. 6. actual: He was caught in the very act of stealing. 7. being such in the true or fullest sense of the term; extreme: the very heart of the matter. 8. true; genuine; worthy of being called such: the very God; a very fool. 9. rightful or legitimate. I hope this helps.