The Confusing Case of “an hour” or “a hour” in English

English grammar can be a tricky beast, with numerous rules and exceptions that can leave even native speakers scratching their heads. One particular area of confusion is the use of the indefinite article “an” before words beginning with the letter “h.” Should it be “an hour” or “a hour”? In this article, we will delve into the rules and exceptions surrounding this issue, providing valuable insights and examples along the way.

The General Rule: “An” before Vowel Sounds

Before we dive into the specifics of “an hour” or “a hour,” let’s first establish the general rule for using the indefinite article “an.” In English, “an” is used before words that begin with a vowel sound. This is to ensure smooth pronunciation and avoid awkward consonant clusters.

For example, we say “an apple” because the word “apple” begins with a vowel sound (/æ/), even though it starts with the consonant letter “a.” Similarly, we say “an umbrella” because “umbrella” begins with a vowel sound (/ʌ/), despite starting with the consonant letter “u.”

The Exception: “A” before Words with a Silent “H”

Now, let’s address the specific case of “an hour” or “a hour.” The word “hour” begins with the letter “h,” which is a consonant. According to the general rule, we would expect to use “a” before “hour.” However, there is an exception to this rule when the “h” is silent.

In the case of “hour,” the “h” is silent, and the word begins with a vowel sound (/aʊ/). Therefore, we use “an” instead of “a.” This is to ensure smooth pronunciation, as saying “a hour” would create an awkward consonant cluster.

Other Examples of Silent “H”

The case of “an hour” or “a hour” is not the only instance where the silent “h” affects the choice of article. There are several other words in English where the “h” is silent, leading to the use of “an” instead of “a.” Let’s explore some of these examples:

  • An honest person: The word “honest” begins with a silent “h” and a vowel sound (/ɒ/), so we say “an honest person.”
  • An heir to the throne: “Heir” starts with a silent “h” and a vowel sound (/eə/), so we say “an heir to the throne.”
  • An hourglass: As discussed earlier, “hour” has a silent “h” and a vowel sound (/aʊ/), so we say “an hourglass.”
  • An honor student: “Honor” begins with a silent “h” and a vowel sound (/ɒ/), so we say “an honor student.”

Exceptions to the Exception

While the general rule and the exception for silent “h” words provide a clear guideline for using “an” or “a,” there are a few exceptions to the exception. In some dialects or accents, the “h” in certain words is pronounced, even though it is traditionally silent.

For example, in some British accents, the “h” in “herb” is pronounced, while in American English, it is silent. Therefore, in British English, it is common to say “a herb,” whereas in American English, it is correct to say “an herb.”

Similarly, the word “historic” can be pronounced with either a silent “h” (/ɪˈstɒrɪk/) or a pronounced “h” (/hɪˈstɒrɪk/). In the case of a silent “h,” we say “an historic event,” while with a pronounced “h,” we say “a historic event.”


1. Is it correct to say “a hotel” or “an hotel”?

Both “a hotel” and “an hotel” are considered correct, but the choice depends on pronunciation. In British English, where the “h” in “hotel” is often silent (/əʊˈtɛl/), it is common to say “an hotel.” In American English, where the “h” is pronounced (/hoʊˈtɛl/), it is correct to say “a hotel.”

2. Should I say “a historic” or “an historic”?

As mentioned earlier, the pronunciation of “historic” can vary. If you pronounce the “h” in “historic,” use “a historic.” If you pronounce it silently, use “an historic.”

3. What about words like “homage” or “honesty”?

Words like “homage” and “honesty” begin with a silent “h” and a vowel sound, so we say “an homage” and “an honesty.”

4. Why is the “h” in “hour” silent?

The silent “h” in “hour” is a result of historical changes in the English language. Over time, the pronunciation of certain words evolved, and the “h” sound was dropped in some cases.

5. Are there any other exceptions to the rule?

While the rule and its exceptions cover most cases, English is a complex language with numerous exceptions. It is always a good idea to consult a reliable dictionary or style guide for specific words that may deviate from the general rule.


The use of “an” or “a” before words beginning with the letter “h” can be confusing, but there are clear rules and exceptions to guide us. In general, “an” is used before words with a vowel sound, while “a” is used before words with a consonant sound. However, when the “h” is silent, as in “hour,” we use “an” to ensure smooth pronunciation. Other words with a silent “h” follow the same pattern. Nevertheless, there are exceptions to the exception, where the pronunciation of the “h” varies in different dialects or accents. By understanding these rules and exceptions, we can confidently navigate the perplexing world of “an hour” or “a hour” in English.

Zara Khan
Zara Khan
Zara Khan is an еxpеriеncеd tеch writеr and AI Eagеr focusing on computеr vision and imagе procеssing. With a background in computеr sciеncе and еxpеrtisе in AI algorithms, Zara has contributеd to rising computеr vision applications.

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