* Tall is an adjective. It describes a noun, like "a tall building" or "a tall man."
* She is a pronoun. It takes the place of a noun, like "She went to the store" (referring to a woman).
Common nouns are general names for people, places, or things. Examples include:
* Person: teacher, student, doctor
* Place: city, country, park
* Thing: book, chair, phone
Let me know if you'd like more examples!