Artículo - Article

An article is a word placed before a noun to show whether the noun refers to a specific person, animal, place, thing, event or idea.  Or it can be non-specific.

If it is specific it is a definite article (artículo definido)

If is it not specific it is an indefinite article (artículo indefinido)

Definite Article
I ate the apple you gave me. - Comí la manzana que me diste.
(a specific apple)

Indefinite Article
I ate an apple - Comí una manzana.
(not a specific apple)

Definite Article
more information
and practice
Indefinite Article
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