Nouns
A noun is a word that names something: either a person, place, or thing. In a sentence, nouns can play the role of subject, direct object, indirect object, subject complement, object complement, appositive, or adjective.
Types of Nouns
Nouns form a large proportion of English vocabulary and they come in a wide variety of types.
Countable Nouns vs. Uncountable Nouns
Countable nouns are nouns which can be counted, even if the number might be extraordinarily high (like counting all the people in the world). Countable nouns can be used with a/an, the, some, any, a few, and many.
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Plural Nouns: Rules and Examples
Most singular nouns are made plural by simply putting an -s at the end. There are many different rules regarding pluralization depending on what letter a noun ends in. Irregular nouns do not follow plural noun rules, so they must be memorized or looked up in the dictionary.
Possessive Nouns
Possessive nouns are nouns which possess something; i.e., they have something. You can identify a possessive noun by the apostrophe; most nouns show the possessive with an apostrophe and an s.