The Definite article has the meaning of definiteness = specifying meaning. It arises from the previous mention of the noun in the context. eg. We have a house in the country. The house is small.
The Definite Article is used:
1. when the situation makes the object definite, when the speaker and listener know what particular object is meant: eg. Open the door, please.
2. when the speaker uses an attribute pointing out particular objects (a particularizing attribute): eg. This is the flat I live in.
3. with nouns in word-groups the first element of which is SOME, NONE, MOST, MANY and the second noun with the preposition OF:
eg. Most of the ladies looked pleased.
4. with nouns denoting unique things: eg. The sun was bright.
5. to denote something which is unique in some way:
e.g. Which is the tallest building in the world?
6. with nouns modified by adjectives in the superlative degree:
eg. This is the shortest story.
7. with nouns modified by the pronoun SAME, NEXT, WRONG, RIGHT, VERY, ONLY, LAST: eg. He asked the same question.
8. with nouns modified by the ordinal numeral: eg. I’m reading the first chapter.
9. the definite article has a generic meaning when the noun is used in a general sense and denotes the whole class: eg. The telephone was invented in the 19th century.
When the noun MAN is used in a general sense no article is used:
eg. Woman is man’s helpmate.
10. with the name of a group of mountains: the Alps, the Himalayas
11. with the name of a canal, river, sea ocean: the Atlantic, the Mississippi
12. with the names of certain countries: e.g. the United States; the Lebanon
13. with the name of hotels, theatres, museums/galleries, cinemas, restaurants/pubs, newspapers, ships (+ the names with of):
e.g. the Hilton / the Sheraton / the British Museum / the Tower of London
14. to denote somebody we visit regularly: She has gone to the doctor/dentist.
15. with an adjective used as a noun referring to a group of people:
e.g. the sick / the injured / the rich / the young
16. with an adjective used as a noun describing a nationality:
e.g. the Japanese / the Asians
17. with the names denoting the whole family: e.g. the Simons
18. with the date (in speech): e.g. March the twenty-fifth
19. to denote somebody in an official position: e.g. the Pope / the President / the Queen
The Definite Article is used in some set expressions:
in the morning
in the evening
out of the question
at the latest
in the night
in the country
to make the bed
at the weekend
on the right/left
on the one/other hand
to do the washing up
at the time
on the whole
the day before yesterday
to keep the house
for the most part
the other day
to go to the theatre
to lay the table
the sooner the better
to play the piano
to tell the truth
under the influence
in the end
to pass the time
all the same
to make the most
on the phone
at the moment
in the distance
to tell the time
to tell the time
in the original
in the shade
on the safe side
in the doorway
on the spot
in the dark
in the sun
in the middle of
The Article
We do not use an article before:
the plural form of a countable noun when it is used in a general sense:
e.g. I buy magazines about computers. I like music.
an uncountable noun when it is used in a general sense:
e.g. She hates dishonesty. Many people are afraid of death.
the name of a language: e.g. She speak fluent German.
an adjective, unless the adjective is followed by a noun:
e.g. Her husband is tall. (She is married to a tall man.)
5. an airport or train station: e.g. Gatwick Airport / Charing Cross Station
6. a university: e.g. London University
7. a shop or bank named after people: e.g. Barclays Bank / McDonald’s
8. a church or cathedral: e.g. St. Martin’s Church / St. Paul’s Cathedral
9. a meal: e.g. have lunch / dinner
10. a disease or illness: e.g. Cancer causes a lot of suffering.
11. a street or road: e.g. Oxford Street / Fifth Avenue
12. a mountain or continent: e.g. Mount Everest; Europe / Asia
13. a country, country, state, etc.: e.g. Holland / Brixton / Texas
14. a lake: Lake Geneva / Lake Ontario
15. a school, college, church, prison when we are not focusing on the particular one:
e.g. He was sent to prison.
16. a hospital, university, etc. when we think of the purpose of the institution, not the building: e.g. He is in hospital.
17. a way of traveling: e.g. go by car / bus / train