ge11-2.1· Unit 2: Nouns, Articles & Determiners· ~14 min

Articles: a, an, the and zero article

Indefinite a/an by sound, definite the, the zero article, and fixed expressions.

English has three article choices: the indefinite article a/an, the definite article the, and the zero article (no article at all). We use a/an only with singular countable nouns that are not specific, and we choose between them by the first SOUND of the next word, not its spelling: a before a consonant sound (a house, a university /juː/, a one-pound coin /w/) and an before a vowel sound (an apple, an hour /aʊə/ with silent h, an MP /em/). We use the when the noun is specific or already known, for unique things (the sun, the moon, the sky), with superlatives and ordinals (the best, the first), and in many fixed phrases. We use the zero article for general plurals and uncountables (Books are useful; Water is essential), for most names of people, countries, languages, meals, sports and means of transport (I had breakfast; I speak English; I go by bus). Many everyday expressions take a set article that must be learned as a whole, such as in the morning, go to bed and play the piano. For example: 'She is the best student in the class' uses the (superlative), while 'Students need books' uses the zero article (a general plural).

Key terms

Indefinite article (a/an)Used only with a singular countable noun that is not specific or is mentioned for the first time; the choice between a and an depends on the next sound, not the spelling.
Definite article (the)Used when the noun is specific or already known, for unique things (the sun, the moon), and with superlatives and ordinals (the best, the first).
Zero articleNo article at all; used with general plurals and uncountables (Books are useful; Water is essential) and with most names of people, countries, languages, meals and sports.
By sound, not spellingUse a before a consonant sound and an before a vowel sound, judged by pronunciation: a university (/juː/), an hour (silent h), a one-pound coin (/w/), an MP (/em/).
First vs. second mentionA noun introduced for the first time takes a/an; the same noun mentioned again becomes specific and takes the (A man came in. The man looked worried).
Fixed expressionA set phrase with a learned article that must be memorised as a whole, such as in the morning, go to bed, play the piano, listen to the radio, by car, on foot.
Choosing the article
ArticleWhen to useExample
aSingular countable, first mention, before a consonant soundThere is a car in front of our house.
anSingular countable, first mention, before a vowel soundShe bought an apple at the market.
theSpecific, unique, superlatives, ordinals, rivers and oceansIt was the best film I have ever seen.
zero articleGeneral plurals, uncountables, most countries, mealsDolphins are clever animals; I have breakfast at seven.
Special cases and exceptions
Use the withUse zero article withExample
Seas, rivers, oceansSingle lakes and mountainsthe Caspian Sea, but Lake Geneva and Everest
DesertsMost single countriesthe Sahara, but Azerbaijan
Groups of islands and statesLanguages and academic subjectsthe United States, but She speaks French.
a or an before "hour"
  1. 1Sentence: It will take us about ___ hour to finish the project.
  2. 2Check the noun: "Hour" is singular and countable, and it is not specific, so it needs the indefinite article a or an.
  3. 3Listen to the sound: The letter h in "hour" is silent, so the word begins with a vowel sound /aʊ/.
  4. 4Answer: Choose by sound, not spelling: an hour.
the vs. zero article with "music"
  1. 1Sentence: I love ___ music, but I didn't enjoy the music at that party.
  2. 2First gap: Here "music" is uncountable and means music in general, so it takes the zero article: I love music.
  3. 3Second gap: "The music at that party" is specific and limited to one event, so it takes the.
  4. 4Answer: Zero article for the general idea, the for the specific case.
🚫Common mistake

Do not choose a/an by the first letter. Choose by the first sound: a university (/juː/), a European diplomat (/j/), but an hour and an honest man, because the h is silent.

🚫Common mistake

Unique things and superlatives or ordinals always take the, never a/an or the zero article: the sun, the moon, the sky, the best film, the first month.

🚫Common mistake

General plurals and uncountables take the zero article, not the: Dolphins are clever (not The dolphins); Gold is valuable (not The gold), unless you mean a specific quantity.

⚠️Caution

Most countries and proper nouns take no article (Azerbaijan, Everest), but names with States, Kingdom or Republic are exceptions: the United States. Seas, rivers and deserts also take the: the Nile, the Sahara.

Rules

  1. 1Use a/an only with singular countable, non-specific nouns; choose by the next SOUND — a before a consonant sound (a university, a one-way street), an before a vowel sound (an hour, an honest man, an MP).
  2. 2Use the for something specific or already mentioned, for unique things (the sun, the moon), and with superlatives and ordinals (the tallest, the second).
  3. 3Use the zero article (no article) for general plurals and uncountables (Cats are clever; Milk is white), and with names of people, most countries, languages, meals, sports and academic subjects.
  4. 4Use the with seas, rivers, oceans, deserts and groups of islands (the Pacific, the Nile, the Sahara), but no article with single mountains, lakes and most countries (Everest, Lake Geneva, Azerbaijan).
  5. 5Learn fixed expressions as whole phrases: in the morning, at the weekend, go to bed, go to school, play the piano, listen to the radio, by car, on foot.

Practice

15 easy · 15 medium · 15 hard

10 random questions per test