Korean Vowels and Diphthongs

A Quick Note on Hangul

Before we dive in, it's worth noting that Hangul is widely praised for its scientific and systematic design. The shapes of the letters were designed to mimic the shape of the mouth when making the sound. This logical structure often appeals to learners with a background in technical or scientific fields.

A crucial rule to learn from the start is that Korean is written in syllable blocks. You can't write a vowel by itself; it must be paired with a consonant. When a syllable starts with a vowel sound, we use a special silent consonant, ㅇ, as a placeholder. For example, the vowel 'a' is written as 아. The 'ㅇ' here has no sound.

Let's begin with the 10 basic vowels.

Part 1: The 10 Basic Vowels

The basic vowels are all formed from simple horizontal and vertical lines. We'll learn their shapes and sounds.

To start, let's get a feel for the sounds and how to write them. This first video provides a great overview.

Now that you've heard the vowels, let's solidify your memory with some useful learning aids. The following text uses mnemonics to help you associate the vowel shapes with their sounds.

To summarize, here are the 10 basic vowels. Practice saying them out loud.

Key Observations:

• Adding a second short stroke to ㅏ, ㅓ, ㅗ, and ㅜ adds a 'y' sound. (e.g., ㅏ [a] -> ㅑ [ya]).
• Vowels like 아, 야, 어, 여, 이 are "tall" and are written to the right of the initial consonant.
• Vowels like 오, 요, 우, 유, 으 are "short" and are written below the initial consonant.

Part 2: The 11 Diphthongs (Complex Vowels)

The remaining 11 vowels are called diphthongs or complex vowels. The good news is that you don't need to memorize 11 completely new sounds. Each one is a combination of the basic vowels you've just learned.

This next video explains this concept very clearly. It shows you how to think of diphthongs as logical constructions.

Now that you understand the logic, let's get more practice with the pronunciation of each diphthong.

As mentioned in the video, some of these sounds have merged in modern spoken Korean. This is a key point to remember!

• 애 (ae) and 에 (e) are pronounced identically by most speakers today. The sound is like the 'e' in "neck".
• 왜 (wae), 외 (oe), and 웨 (we) are also pronounced identically by most people, like the word "way".

Here is a summary table of the diphthongs. Notice how they are formed from the basic vowels.

Practice Time

Let's test your recognition. Try to name the sound for each vowel before revealing the answer.

1. 아 -> (a)
2. 위 -> (wi)
3. 요 -> (yo)
4. 에 -> (e)
5. 어 -> (eo)
6. 왜 -> (wae)
7. 유 -> (yu)

Practice writing each of the 21 vowels. Remember the stroke order rule: top to bottom, left to right. A good way to practice is to write them while saying the sound out loud. Try to do this for 10-15 minutes to build muscle memory.

For a complete overview of all the letters we'll be covering, you can refer to this chart. Today, we focused on the "Vowels" and "Diphthongs" sections.

Conclusion

Congratulations on completing your first lesson! You've taken a crucial step towards reading and writing Korean.

Here are the key takeaways:

• There are 10 basic vowels in Hangul, built from simple vertical and horizontal lines.
• There are 11 complex vowels (diphthongs), which are combinations of the basic vowels.
• A silent consonant, ㅇ, is used as a placeholder when a syllable begins with a vowel sound.
• In modern Korean, some diphthongs like 애/에 and 왜/외/웨 have the same pronunciation.

In our next lesson, we will learn the 14 basic consonants and 5 double consonants. Once you've mastered those, you will have all the tools you need to combine them with the vowels you learned today to read and write your first Korean syllable blocks. Keep practicing