What is the part of speech that used as name a specific individual place or object it must be capitalized?

Here's why:

* Proper nouns are words that name specific people, places, or things.

* They are always capitalized because they are unique and distinct.

Examples:

* People: John, Mary, Queen Elizabeth II

* Places: London, Mount Everest, the Pacific Ocean

* Things: iPhone, Eiffel Tower, the Mona Lisa

Let me know if you have any other questions!