Use Of The A And An Questions Medium
The purpose of using the articles "a" and "an" is to indicate that a noun is indefinite or non-specific. "A" is used before words that begin with a consonant sound, while "an" is used before words that begin with a vowel sound. These articles help to specify whether we are referring to any one of a group or a particular item. They are also used to introduce new or unknown nouns in a sentence.