What is a noun and a pronoun and adjective 

A noun is a person place or thing. An adjective is a describing word and a pronoun is A word or form that substitutes for a noun or noun phrase. Examples: Noun: New York, Brad Pitt, dog. Pronoun: she, he, it. Adjective: flustered, beautiful, amazing.

Noun is something like place, animal etc, pronoun is cutting off a name and putting he or she instead. Adjective mean something that describes tired example rose is red. Red is the adjective