The Thai script is the writing system for the Thai language. At first glance, its looping, elegant characters might look complex, but they follow a clear and consistent logic. It's written from left to right, just like English. One major difference is that Thai script usually doesn't use spaces between words. Instead, spaces are used to mark the end of a clause or a sentence.

The Thai script is an abugida. This means that each consonant symbol has an inherent, unspoken vowel sound that comes with it. Vowel marks are then added to change this sound. Think of it like a default setting that you can customize with extra symbols.

Thai has 44 consonant symbols, but they represent only 21 distinct consonant sounds. Why the extra letters? Some sounds have multiple symbols, and many are now obsolete but remain for historical and loanword purposes.

The most important concept for Thai consonants is their classification into three groups: high, mid, and low. This class system is a key factor in determining the tone of a syllable, which is crucial for meaning in Thai. You don't need to memorize the tones themselves yet, just understand that a consonant's class is the first ingredient in the recipe for a word's tone.

Each consonant has a traditional name that helps with learning, usually in the format of "[sound] aw [example word]". For instance, the first letter ก is called gaw gai, where gaw is its sound and gai (ไก่) means chicken.

While consonants form the base of a syllable, vowels give it a specific sound. Thai has 16 basic vowel symbols that combine to create at least 32 different vowel sounds, including short, long, and diphthong variations.

Unlike English where vowels are placed in line with consonants, Thai vowel marks can appear above, below, before, or after the consonant they modify. Sometimes, a single vowel sound is represented by a combination of marks in multiple positions around the consonant.

Finally, we have tone marks. Thai is a tonal language, and the pitch of a word can change its meaning entirely. There are four tone marks, or diacritics, that are placed above a consonant to specify the tone of the syllable.

The final tone of a syllable is determined by a combination of three things: the class of the initial consonant, the type of vowel (long or short), and the presence of a tone mark. For now, just focus on being able to identify these marks.

Ready to check your understanding of the script's structure?

Grasping these structural elements—the consonant classes, the placement of vowels, and the role of tone marks—is the first major step to reading and writing Thai.