This page will teach you when and how to use the definite article (the).
We use the definite article…
1- When talking about inventions or species of animal
The panda is an endangered species.
The Lightbulb was invented by Thomas Edison.
2- With national groups, religious communities, or groups of particular beliefs
The British are usually very polite.
The Muslims where enraged by the senator’s comments.
3- With previously mentioned nouns
I’ve got three dresses, a red one, a blue one, and a black one. I think I’ll wear the red one to the party.
4- When we know which one we are talking about
We decided to buy the house we told you we were looking at last week.
5- When there is only one
The Internet has made the world a much smaller place.
6- With superlatives
New York is the biggest city in North America.
7- With the names of states, kingdoms, and republics
The United Arab Emirates is a very rich country.
8- With the names of oceans, seas, rivers, and deserts
The River Thames runs through London.
*Note: We do not use the definite article with the names of lakes.
They went to their cottage at Lake Superior for the long weekend.
9- With the names of mountain ranges (groups of mountains)
The Alps are popular with skiers.
*Note: We do not use the definite article with the names of single mountains.
We went trekking up Mount Giewont.
10- With plural names
The Canary Islands are situated off the coast of Africa.
11- With important job titles
The President gave the order to launch a pre-emptive strike.