When to use the (and when not to)

When you talk about people or things in general (the whole kind), use a plural or uncountable noun without the. When the listener knows exactly which ones you mean, use the.

A describing phrase after the noun does not automatically need the. If it still describes a type of thing in general, there is no the; if it points to a specific group, use the.

• I like working with people who are honest.

  still general — a type of person

• I really like the people I work with.

  a specific group

• Do you like strong black coffee?

  still general

• The coffee we had this morning was too sweet.

  specific coffee

• most + noun for a general statement: Most people like holidays. (not: The most people)
• all + noun = all of them in general; all the + noun = all in a specific group: All plants need water. / All the plants in my garden died.

💡Ask yourself: “Does the listener know which ones?” If you mean “all things of that kind”, use no article: I'm afraid of dogs (dogs in general), not the dogs.

Use the when there is only one such thing (in the world or in the situation), and before superlatives, ordinal numbers and the same.

• Only one: the sun, the moon, the sky, the sea, the world, the internet, the environment
• Superlatives: the best, the tallest, the most expensive
• Ordinals and next / last: the first time, the fifth floor, the next train, the last day
• the same (not: same): We have the same phone.
• A part of something: the end of the month, the top of the page, the beginning of the film

• The sky was clear and the sea was calm.

• This is the best pho I've ever had.

• Our office is on the fifth floor.

• Lan and I were born on the same day.

But space (the universe) and Earth used as the name of a planet usually have no the. There is also no the before a number label: room 12, page 30, gate 5, platform 2, size 39.

• Would you like to travel into space?

  not: the space

• Our flight leaves from gate 5.

  not: the gate 5

With school, university / college, hospital, prison, church: use no the when you mean the place's main purpose (studying, treatment, punishment, worship). Use the when you mean the building itself, for example when you go there as a visitor.

American English is a little different: Americans usually say in the hospital / to the hospital even for patients, and often use college for any university study: She's in college.

Some other common phrases also have no the:

• go to bed / be in bed (to sleep or rest) — but sit on the bed (a specific piece of furniture)
• go to work / be at work / start work / finish work
• go home / come home / get home / be at home — no to before home

• I'm tired. I'm going to bed.

• Don't put your bag on the bed.

  a specific bed

• Dad is still at work.

• What time did you get home?

  not: get to home

• What did you have for breakfast?

• We had a very nice dinner at Lan's house.

  adjective → a

• My son is learning to play the piano.

• Do you want to go to the cinema tonight?

The + adjective (with no noun) means a whole group of people: the rich, the poor, the young, the elderly, the homeless, the unemployed, the sick, the injured. The meaning is plural, so the verb is plural, and the adjective never takes -s.

• The elderly often need help with new technology.

  need, not: needs

• Should the rich pay more tax?

For one person, add a noun: a rich man, an elderly woman, a homeless person (not: a rich).

Nationality words ending in -ch, -sh, -ese, -ss take the for the whole people: the French, the British, the Dutch, the Spanish, the Chinese, the Japanese, the Vietnamese, the Swiss. Other nationalities add -s and usually have no the: Americans, Italians, Koreans, Thais. With every nationality you can say … people: Vietnamese people, French people.

The + singular noun can also mean a whole kind of animal or an invention — a slightly formal style, common in books and articles.

• The Dutch are famous for their bicycles.

• The tiger is in danger of dying out.

• Who invented the telephone?

💡For one person, the most natural choice is a Chinese man / a Swiss woman / a Vietnamese person. “A Chinese” is grammatical but can sound abrupt; Chinese people is the safest plural.

• ✗The money can't buy happiness.

  ✓Money can't buy happiness.

  A general idea → no the.

• ✗I usually go to the bed at eleven.

  ✓I usually go to bed at eleven.

  go to bed has no the.

• ✗The most people here speak English.

  ✓Most people here speak English.

  most + noun, no the.

• ✗Our train leaves from the platform 2.

  ✓Our train leaves from platform 2.

  No the before a number label.

• ✗The rich is getting richer.

  ✓The rich are getting richer.

  the + adjective is plural.

• ✗We had very nice lunch.

  ✓We had a very nice lunch.

  A meal with an adjective → add a.