In traditional grammatical thought, an article (a, an, the) is considered a type of adjective (a word that describes a noun). But many modern texts separate the article into its own class, creating a ninth part of speech.
Or simply, an aritcle is an adjective.
because its the part of speech
The - article first - adjective play - noun
Sound may be a noun, a verb or an adjective.
"The" is an article in both occurrences; "apple" is a noun, "is" is a verb, "on" is a preposition, and "ground" is a noun.
adverb
"The" is a definite article.
"The" is a definite article.
article or determiner
because its the part of speech
"a" is an article along with "an" and "the"
The is an article; music is a noun.
In is a preposition, the is an article, and field is a noun.
in - preposition the - article house - noun
In is a preposition, the is an article, and field is a noun.
"A" is an indefinite article as opposed to "the" which is a definite article. Depending on the context of the sentence it can also be a noun.
An is an indefinite article. When used with an article, opening is a noun.
The - article first - adjective play - noun