Indefinite Article

In English there are two indefinite articles a and an. They are used before a noun to define it as something non-specific.

  • I need to buy a new phone.
    (I am not talking about a specific phone.)
  • Do you want a cup of coffee?
    (I am not thinking about a specific coffee.)
  • This is my first time in an airplane.
    (This is the first time in any plane.)
  • I want an apple for my lunch.
    (It can be any apple.)

Compare with the definite article.