A noun is a naming word - a word for a person or a thing. For example, Amélie, a book, school, food. In English, nouns are the words you can put the (definite articles – the book, the shoe ...
Sometimes a noun looks like it should be plural when it isn’t. Chances are that this noun is called a mass noun. Mass nouns are nouns that, by their very nature, are plural. These are also called ...