Here's why:
* Noun: "Boy" is the noun, the core word that names a person.
* Adjective: "Little" modifies the noun "boy" by describing its size.
* Phrase: The combination of the adjective and noun creates a phrase that acts as a single unit, functioning as a noun in a sentence.
For example:
* The little boy played with his toys. (The noun phrase "little boy" is the subject of the sentence)
* I saw a little boy at the park. (The noun phrase "a little boy" is the object of the verb "saw")