Is the word Little Rock a noun?

Yes, "Little Rock" is a noun. It is the name of the capital city of Arkansas.

Here's why:

* Proper Noun: "Little Rock" is a proper noun because it refers to a specific, unique place. Proper nouns are always capitalized.

* City: The word "city" is also a noun, and "Little Rock" functions as a noun in the phrase "the city of Little Rock."

Let me know if you have any other grammar questions!