THE ARTICLE

An article is a word that combines with a noun to indicate the type of reference being made by the noun.

TYPE OF ARTICLE: article are usually characterized ad either definite or indefinite.

Definite article: indicates that it's noun is a particular one (or ones) identifiable to the listener.
The definitive article in english, for both singular and plural nouns is The
example:
The children know the fastest way home.

Indefinite article: indicates that it's noun is not a particular one (or ones) identifiable to listener. English uses a/an, from the old english forms of the number 'one', as it's primary indefinite article. the form an is used before words that begin with a vowel sound, and a before words that begin with a consonant sound

example:
She had a house so large that an elephant would get lost without a map