What are Definite Articles?

Definite Articles says “The”. The definite article (the) is used before a noun to indicate that personal, certain, or former acquaintance; which has already been discussed and well-acquainted speaker and audience. In other words, The uses were to denote certain metals/persons/animals. The is used with countable Nouns (Singular noun & Plural noun) and uncountable nouns.

Uses of Definite Article

1. Before a Noun
We use ” The ” when we talk about something that has already been referred to in the prior sentence, we use “The”.
Example:
   A cat got in honor of our dog today. The dog wins the battle.

2. Already Noun Knows to the User
When the user already knows the thing you are talking about, at such places use “The”. Instead of describing that thing since it is known to the user. 
Example:
   “Mr. Micheal is wearing a suit at the party.” In this example, a person already knows about the party to which the other person is referring in this sentence, and thus used “the” to refer to the party.

3.Before Unique Nouns 
“The” will always refer to Universal things Like The Sun, The Moon, The Arabian Ocean, The Bermuda Triangle, The Eiffel Tower, The Himalayas, etc. All these Universal things or Places are certain and would not change. So you use “The” to refer to such things.

4.Superlative Adjectives
Superlative adjective is used for Definite Nouns and to describe some special and unique. 
Example:
   My mother cooks the Best North Indian Food in Society.
   At 3307 ft. Height, Burj Khalifa Tower is The Tallest tower in the world.
   Here “Best” and “Tallest” are the superlative adjectives, and thus we used “The” before them.

5.Before Adjectives are Used as Nouns
When you are talking about some advice or duty, we also use “The” in such places.
Example:
   The government should do something for the jobless people.
Here Jobless People are used both as a noun and adjective, that’s why we used “The” before it.

6.Proper Nouns
With Proper Nouns such as Nation’s Name, Plural names of nations, some titles, some associations, some structures, papers, masterpieces, explicit family names, mountains, waterways, oceans, gatherings of islands, and deserts, that use “the”.
Example:
The Indian sea, The Bay of Bengal, The Netherlands, The Caspian, The United States of America, The Taj Mahal, The Times of India, The Suez Canal, The Bay of Bengal, and The Guptas. 

7. With Nationalities
When we talk about any nationality, we must use “the” before it to emphasize that word. 
Example:
   The Mughals and The British controlled India for a long time.
Regardless of whether nationality is in the plural. Like: 
   The Indians.
   The Chinese.
   The Americans.

8. Mentions of Services and Systems
   Switch on the television to watch the newest show.
   We must go to the police station to report the crime.
   You should take this to the buyer’s court.

9.Comparative Proclamations 
When we compare two things with each other motivational advice or something else, must be used “in such a sentence. 
Example:
   The more he works, the more he will be successful.
   The more we travel, the more we shall fall in love with Nature.

General Rules / Tricks to use “The” Definite Article
• Use them for things that have been mentioned already. 
• Use when there is something unique, even if not mentioned already.
• Use them when we are expressing a statement for a particular person or object.