Question

What is a proper compound noun?

Answer 1

A compound noun is made up of two or more nouns

Explanation:

A compound noun is a noun that is made up of two or more words. Most compound nouns in English are formed by nouns modified by other nouns or adjectives.

For example: The word black is an adjective and board is a noun, but if you join them together they form a new word - blackboard.