Can a noun act as an adjective?

Yes, a noun can act as an adjective, and this is called a noun modifier. Here's how it works:

* Directly Modifying: A noun can directly precede another noun to describe it.

* Example: "The garden hose" (garden describes the type of hose).

* Using a Possessive: A noun in the possessive form can act as an adjective.

* Example: "The dog's bone" (dog's modifies bone to show ownership).

* Using a Phrase: A noun can be part of a phrase that modifies another noun.

* Example: "The house on the hill" (the entire phrase modifies house).

Examples of Nouns Acting as Adjectives:

* City park

* Football game

* Summer vacation

* Coffee table

* Christmas tree

Important Note: While nouns can function as adjectives, it's essential to distinguish them from true adjectives. True adjectives have comparative and superlative forms (big, bigger, biggest), whereas nouns used as adjectives don't.

Let me know if you'd like more examples or want to explore further!