DEFINITE AND INDEFINITE ARTICLES
In English there are three articles: a, an, and the.
Articles are used before nouns or noun equivalents and are a type of adjective.
The definite article (the) is used before a noun to indicate that the identity of the noun is known to the reader.
The indefinite article (a, an) is used before a noun that is general or when its identity is not known. There are certain situations in which a noun takes no article.
Definite article
the (before a singular or plural noun)
Indefinite article
a (before a singular noun beginning with a consonant sound)
an (before a singular noun beginning with a vowel sound)
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