Here's why:
* Nouns name people, places, things, or ideas. "Dignity" refers to the state or quality of being worthy of honor or respect.
* Adverbs modify verbs, adjectives, or other adverbs, telling us how, when, where, or to what extent something happens.
Here are some examples to illustrate the difference:
* Noun: "He treated her with dignity." (Dignity is the object of the preposition "with")
* Adverb: "She spoke calmly." (Calmly modifies the verb "spoke")
Let me know if you have any other words you'd like to identify!