The is considered the definite article. Meaning to say, it is only used before specific or definite nouns. But other than that, it also has special uses.
In this blog, you will learn the correct usage of the article the.
1. The is used before a noun that is mentioned for the second time. A noun being mentioned for the first time is generally considered indefinite or unspecified. Therefore, the should not be used before it.
I have a cat. It has brown eyes. ... The cat likes to sleep on my bed.
