Everyone hands you a grid with 24 boxes in it and walks away. Nobody actually reads that grid. So let us throw it out and ask four questions instead, and by the end of this you will be calling tones off a menu.
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The 24 box tone table is correct. It is also a lookup table for something that is really a sequence of small decisions, which is exactly why nobody can hold it in their head. You do not memorise 24 outcomes. You ask four questions in order and the answer falls out.
Here is the promise. Every one of those four questions is answered by something you can see in the written word. Not by having heard it before, not by guessing. Thai spelling hands you the tone every single time, and this is the thing that makes learning the script worth the trouble.
Every Thai consonant belongs to one of three classes: mid, high or low. And here is the good news that changes the size of the whole job. There are 9 mid class letters and 11 high class letters. Learn those 20, and all 24 letters left over are low class by default.
The 9 mid class letters
ก จ ฎ ฏ ด ต บ ป อ
The 11 high class letters
ข ฃ ฉ ฐ ถ ผ ฝ ศ ษ ส ห
That is it. Twenty letters. You never memorise a low class letter, you just fail to find it in the other two lists. And ฃ is obsolete in modern Thai, so realistically you are memorising nineteen.
Drill this on its own before you touch anything else. Open the consonant read mode, tap the Mid chip, and go through those 9 until they are boring. Then do High. Two sessions and question 1 is answered forever. 🎉
Thai splits syllables into live and dead, and it is about how the syllable ends. Say it out loud. If the ending can be held, it is live. If your mouth slams shut, it is dead.
Live. The syllable ends in one of these:
Dead. The syllable ends in one of these:
That "whichever letter happens to be writing it" is doing real work. Thai has a pile of letters that all close a syllable with the same stop. ก, ข and ค all end a syllable as k. ด, ต, ถ, ท and ส all end it as t. บ, ป, พ and ฟ all end it as p. If a syllable ends in any of those, it is dead. You do not need the full final consonant map to use this rule, you just need to hear that the syllable stops hard.
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There are four of them, and they sit above the initial consonant.
| Mark | Name | Looks like |
|---|---|---|
| ◌่ | mai ek | a single stroke |
| ◌้ | mai tho | a little curl |
| ◌๊ | mai tri | a shape like a 7 |
| ◌๋ | mai chattawa | a small plus sign |
Most Thai words carry no tone mark at all. Mai tri and mai chattawa are rare, and turn up mostly on mid class consonants in loanwords, nicknames and slang. So four marks, and two of them you will barely meet.
Two small tables instead of one big one. The first is for syllables with no tone mark, which is most of them.
| Class | Live syllable | Dead syllable |
|---|---|---|
| Mid | mid tone | low tone |
| High | rising tone | low tone |
| Low | mid tone | short vowel: high tone long vowel: falling tone |
Look where vowel length appears in that table. One square. Low class, dead syllable. Everywhere else you can ignore it completely.
And the second table, for when there is a mark.
| Class | ◌่ mai ek | ◌้ mai tho | ◌๊ mai tri | ◌๋ mai chattawa |
|---|---|---|---|---|
| Mid | low | falling | high | rising |
| High | low | falling | not used | not used |
| Low | falling | high | not used | not used |
Read the low class row twice, because it is the one that catches everybody. A mark does not name a tone on its own. Mai ek is a low tone on ก and a falling tone on ม. Same mark, different letter, different tone. Once that clicks, half the confusion goes away.
These are all words you meet on a menu or a shopfront in your first week in Thailand. Cover the answer, try it yourself, then check.
ไก่ gài chicken
Low tone
ข้าว khâao rice
Falling tone
ผัด phàt stir fried
Low tone
มาก mâak a lot, very
Falling tone
นะ ná the softener on the end of a sentence
High tone
Same job, seven more words, compressed. Work each row left to right and the last column should not surprise you.
| Word | Class | Live or dead | Mark | Tone |
|---|---|---|---|---|
| กิน gin, to eat | mid | live | none | mid |
| ต้ม tôm, boiled | mid | live | mai tho | falling |
| เผ็ด phèt, spicy | high | dead | none | low |
| น้ำ náam, water | low | live | mai tho | high |
| ไม่ mâi, not | low | live | mai ek | falling |
| ร้าน ráan, shop | low | live | mai tho | high |
| หมู mǔu, pork | see below | live | none | rising |
หมู is the one word in that table that breaks the rules as I have stated them, so let us deal with it. There are three exceptions worth knowing, and after that you are genuinely done.
Put ห before certain low class consonants and it goes silent, but it hands over its class on the way out. The syllable then behaves as high class. That is why หมู is rising rather than mid. The ห is not pronounced at all, it is there to change the tone.
You will see this constantly: หมู (mǔu, pork), หนู (nǔu, mouse), ให้ (hâi, to give), หมด (mòt, all gone). Once you know to look for a silent ห at the front, these stop being weird and start being the most regular thing on the page.
Same trick, mid class version, and Thai only does it in four words: อย่า (yàa, do not), อยู่ (yùu, to be at), อย่าง (yàang, kind of) and อยาก (yàak, to want). All four are low tone. Learn them as four vocabulary items and never think about it again.
In a word like สบาย (sabaai, comfortable) there is no vowel written between ส and บ, but there is a short a sound in there, and the ส passes its high class along to the second syllable. This one takes longer to feel natural. It is also not standing between you and a menu, so park it for now.
Reading the rules once feels great and does almost nothing. Tone rules go in through repetition on real words, in small doses, over about a week.
Give it a week of fifteen minute sessions and something quietly brilliant happens. You stop calculating and start just knowing. Reading a shopfront and hearing the right tone in your head is one of the best feelings in this whole language. 😊
If the letters themselves are still slippery, start with the 30 day reading plan instead and come back here around day 25. And if you are still deciding whether any of this is worth it, we wrote an honest answer to that too.
Four things decide it, and all four are visible in the writing. The class of the initial consonant, whether the syllable is live or dead, the length of the vowel, and any tone mark. Ask them in that order. Mid class live with no mark is mid tone, high class live with no mark is rising, and a mark changes the answer differently depending on the class it sits on.
No. Learn the 9 mid class letters and the 11 high class letters, and all 24 remaining letters are low class by default. That is 20 letters to memorise rather than 44.
A dead syllable ends in a hard stop, meaning a k, t or p sound, or it is a short vowel with no final consonant. A live syllable ends in a sound you can hold, meaning m, n, ng, y or w, or it is a long vowel with no final consonant.
No, and this is the classic trap. Mai ek gives low on mid and high class consonants but falling on low class. Mai tho gives falling on mid and high class but high on low class. The mark only tells you the tone once you know the class of the letter underneath it.
Tracing letters gets you far! A person who corrects your tones gets you further. These are teachers I know and recommend.
Hi, I’m Mimi! I’ll be your friend (not just your teacher) and get you reading, writing and actually speaking Thai, the fun and stress-free way.
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