Per examples in the photo above, the three consonants āļŠ, āļĐ and āļĻ share the same -s initial consonant sound. That’s why you need to call the name of each consonant with the specific example word. If you say ‘soor’, it can be āļŠ, āļĐ and āļĻ.
Photo by Ultimate Guide to Thai Reading Course
As you can see from the photo above, consonants are grouped by initial consonant sounds with a special color. For example:
- Black: Unique sounds
- Red: -k sound
- Dark green: -ch sound
- Light green: -n sound
- Yellow: -s sound
- Pink: -t sound
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photo by Ultimate Guide to Thai Reading Course
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For example
Both āļŠ and āļĐ have -s initial consonant sound when are with a vowel -āļē (āļŠāļĢāļ°āļāļē -aa sound) then both āļŠāļē and āļĐāļē are pronounced exactly the same as “saa”. It’s because both of them share the same initial consonant sound. However, āļŠ is more commonly used than āļĐ.
Classes of Thai consonants
One important thing that you have to learn from the beginning is that the 44 Thai consonants are classified into 3 classes which are High Class, Middle Class and Low Class.

Why?
Since Thai is a tonal language which means words can be pronounced with 5 different tones with totally different meanings. Classes of consonants are one of the things that determine the tones of a word.Â
Different classes of consonants = different tones = different meanings. That’s why it’s important to learn consonants based on 3 classes of consonants.Â
Let me show you!
Let’s say āļ (goor-gai) is a middle-class consonant while āļŠ (soor-suea) is a high-class consonant.
- āļāļē (gaa) with a flat tone
- āļŠāļē (sÃĢa) with a rising tone
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As you can see, they are in different classes of consonants and have different tone rules. So learning consonants by each class is the easiest way to master Thai consonants.
Summary
That’s it for an overview of basic Thai consonants. I hope I answered the questions you had and made you feel more comfortable with Thai consonants. If you still have any other questions about Thai consonants, please feel free to comment below. I will get back to you shortly.
In the next blog post, I will go deeper into the topic of Thai consonants, as I will be talking about ending consonants because there are only 7 ending consonant sounds in the Thai language. Curious? Just stay tuned!
Learn more
Ending consonant sounds
https://www.bananathaischool.com/blog/blog-ending-consonants/
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Start learning your first Thai consonants
I have uploaded a few lessons from my reading Thai course (Ultimate Guide to Thai Reading) to help you with Thai script on Youtube.
This video below will teach you the Middle-Class consonants and how to write them. Please enjoy!