Is orange common noun or proper noun?

"Orange" can be both a common noun and a proper noun, depending on how it's used.

* Common Noun: When referring to the color, it's a common noun. For example: "The sunset was a beautiful orange."

* Proper Noun: When referring to a specific place or thing, it's a proper noun. For example: "I visited the city of Orange, California."

Here's a breakdown:

* Common Noun: A general name for a person, place, thing, or idea.

* Proper Noun: A specific name for a person, place, thing, or idea. It is always capitalized.

So, be sure to consider the context to determine whether "orange" is being used as a common or proper noun.