A and an are the same type of indefinite article ... But note, when we want to be specific, the definite article is needed: The tennis played by Maria Sharapova at Wimbledon this year was awesome.

Indefinite Articles are the words 'A' and 'An'. These articles are used to refer common or non-specific nouns, i.e., not a specific person, place, object, or idea. 7. It can be used before the ...

When do we use definite articles here? And what about abstract uncountable nouns? We are taught that when qualified they can take a definite (or indefinite article) but when should we consider ...