English and many other languages have three article states for the noun:
(Some languages (for instance Serbo-Croat) has only a single state for the noun.)
The definite article: In Turkish all these three states can be expressed separately, but a definite article “the” does not exist. The -i state of the name is used to express the definite case “the".
The indefinite article: “bir” (meaning: a/an/one) is used to express the definite case.
The distinction between “a” and “one” is expressed with the stress in Turkish. Example: