Is her a noun? Is cat a person, place or thing?

Isn't her a pronoun? Either a possessive or personal pronoun?

A cat is a thing, the word cat is indeed a noun.

Your dictionary can be a big help on these words...

yes and thing

A cat is a thing
her is a pronoun

a cat is a thing and my Brother said it is a animal and i ask him person place or thing and he it is a person place or thing and animal but the correct answer is that's a cat is a thing.

You are correct. "Her" is a pronoun, specifically a possessive or personal pronoun. It is used to refer to a female in the third person. It is not a noun itself, but it can be used to replace a noun in a sentence.

Regarding "cat," you are also correct. The word "cat" is a noun. It is a type of animal and falls under the category of "thing" as it refers to a tangible object. To determine if a word is a noun, you can consult a dictionary or reference source which provides definitions and categorizations of words.

Remember that understanding grammar and parts of speech is essential to accurately classify words and use them correctly in sentences. Using a dictionary or a grammar resource can help you in determining the type of word and its proper usage.