Noun - Wikipedia
https://en.wikipedia.org/wiki/NounA proper noun or proper name is a noun representing unique entities (such as India, Pegasus, Jupiter, Confucius, or Pequod), as distinguished from common nouns, which describe a class of entities (such as country, animal, planet, person or ship). Count nouns or countable nouns are common nouns that can take a plural, can combine with numerals or counting quantifiers(e.g., one, two, several, every, most), and can take an indefinite a…