Thai vowels work very differently from English vowels.

Instead of always following a consonant in a straight line, Thai vowels can appear all around a consonant.

You’ll find them on the left, right, top, bottom, and even surrounding the consonant.

This unique placement system is one of the first things you must learn when reading Thai.

I’ll explain exactly how Thai vowel placement works with clear examples.

The core concept of Thai vowel placement

In English, we read letters strictly from left to right.

Thai is also read from left to right, but the vowels act like accessories attached to the main consonant.

Every syllable in Thai has an initial consonant at its center.

The vowel is then placed in a specific position relative to that initial consonant.

When you look at a Thai vowel chart, you’ll see a dash (-) or the silent consonant letter อ next to the vowel.

This placeholder symbol shows you exactly where the consonant goes in relation to the vowel.

If the dash is in front of the vowel, the consonant is written first and the vowel follows it on the right.

Let’s look at the specific placement rules for each position in the Thai script.

Vowels written to the right

This is the most familiar placement for English speakers.

These vowels are written directly after the initial consonant.

You read the consonant first, and then the vowel immediately follows it.

The most common example is the long “aa” vowel, written as -า.

Here’s a short phrase using right-placed vowels.

Vowels written to the left

This is where things start to feel different for beginners.

These vowels are written before the initial consonant, but you still pronounce the consonant first.

You’ll visually see the vowel on the left side, followed by the consonant on the right.

Your brain will quickly learn to process the consonant first before making the vowel sound.

Here’s a sample sentence using a left-placed vowel.

Vowels written above

Some Thai vowels sit directly on top of the initial consonant.

These look like little hats resting above the letter.

If the word has a tone mark, the tone mark will stack directly on top of the vowel.

Here’s a common phrase using an above-placed vowel.

Vowels written below

Just like vowels can sit on top of consonants, they can also hang underneath them.

These vowels are placed directly below the initial consonant.

There are only two main vowels that go in this specific position.

Here’s an example using a below-placed vowel.

Vowels that surround the consonant

Some Thai vowels are made up of multiple symbols combined together.

These complex vowels wrap around the initial consonant on multiple sides.

They might have a part on the left and a part on the right.

Others might have a part on the left, a part on top, and a part on the right.

Despite having multiple parts taking up different positions, they create a single vowel sound.

Here’s a sample sentence using a surrounding vowel.

Summary of Thai vowel placement

Learning the positions of Thai vowels takes a little bit of practice.

Your brain is simply used to reading letters strictly from left to right.

Once you get used to identifying the core consonant first, it becomes second nature.

Focus on memorizing the visual placement rules of each vowel symbol.

Always read the initial consonant first before blending the vowel sound.