Articles are used to point out or refer to nouns.
A, An and THE are called Articles.
INDEFINITE ARTICLES – A and an are called indefinite articles because they do not refer to any particular or definite person, place or thing; as an umbrella, a boy, a book.
DEFINITE ARTICLES – THE is called the definite article, because it always points out some particular object.
E.g. This is the boy who had stolen my purse.
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