What is an adjective noun?

Answer 1

A noun that functions as an adjective to describe another noun is called an attributive noun. Examples:

almond cookies

school building

road hog

man cave

When an attributive noun-noun is used commonly for a specific thing, it becomes accepted as a compound noun. Here's a few compound nouns that came into existence in my lifetime:

bullet train

cell phone

computer network

feeding frenzy

Answer 2

Adjective Nouns are Nouns as Adjectives.

EXAMPLE: The blue balloon popped!

(Blue is the Adjective; Blue can also be a Noun)

EXAMPLE: Blue is pretty.

(Blue is a Noun in this sentence.)

Answer 3

A noun is a word for a person, a place, or a thing.

An adjective is a word used to describe a noun.

A verb is a word for an action or a state of being.

Examples:

The boy rides a bicycle to the park.

• boy = noun, a word for a person.
• rides = verb, a word for an action.
• bicycle = noun, a word for a thing.
• park = noun, a word for a place.

Jane was a good student.

• Jane = noun, a word for a person.
• was = verb, a word for a state of being.
• good = adjective, describes the noun 'student'.
• student = noun, a word for a person.

The bus driver stopped at the depot for a hot coffee.

• bus driver = noun, a word for a person.
• stopped = verb, a word for an action.
• depot = noun, a word for a place.
• hot = adjective, describes the noun 'coffee'.
• coffee = noun, a word for a thing.