What is a proper noun

A proper noun names a specific person, place, thing, or idea. Proper nouns are always capitalized.

Examples:
Persons: Joe, Mr. Kaminski, President Bush
Places: Grand Canyon National Park, Chicago, Hirsch High School, Ethiopia
Things: Coca Cola, Nike, Dell Computer
Ideas: Christianity, God

A proper noun is a word that is used to identify a specific person, place, thing, or idea. It is always capitalized. For example, names of people like "John," "Mary," or "Michael" are proper nouns. Names of places like "New York City," "Paris," or "Mount Everest" are also proper nouns. Proper nouns can also include names of organizations, such as "Microsoft" or "United Nations." To identify if a word is a proper noun, look for the capitalization and the specificity to a particular entity.