Cluster clues and silent tails
Recognise true clusters, irregular ทร and cancellation.
Meet the letters
Tap a card and listen. Try saying it too.
i
cancellation mark. Marks silent letters; sometimes a group is silent.
จันทร์Hear it in จันทร์ · จันทร์i
phinthu. A dot below, chiefly in Pali/Sanskrit or pronunciation guides; uncommon in everyday Thai.
Words to read

ปลา
fishplaaกลัว
be afraidkluaขวา
right, directionkhwǎaทราย
sandsaaiจันทร์
moon / Monday in วันจันทร์chanReading tips
์ · cancellation mark · Marks silent letters; sometimes a group is silent.
ฺ · phinthu · A dot below, chiefly in Pali/Sanskrit or pronunciation guides; uncommon in everyday Thai.
Common true initial clusters join ก ข ค ต ป ผ พ with selected ร ล ว. Read the first consonant plus r, l or w, then the vowel. The first consonant controls the tone. Not every consonant pair is a cluster.
For example, ปลา reads plaa and กลัว reads klua. In many words ทร is pronounced s, such as ทราย (saai), but in some loans it is a true tr cluster. Consult the word’s pronunciation.
์ cancels a consonant or consonant group in many borrowed spellings. In จันทร์, ทร์ is silent; final น supplies n. Do not confuse cancellation ์ with the shortener ็ or any tone mark.
Reading practice
Hear the signs
Listen, then match the sign. The helper vowel belongs to the letter clip.
Hear the words
Listen to a whole word. Match its printed spelling.
Hear the words
Listen to a whole word. Match its printed spelling.
Sound to spelling
Listen. Choose the word you studied.
Spelling to sound
Read the whole word. Choose its sound.
Sound to spelling
Listen. Choose the word you studied.
Spelling to sound
Read the whole word. Choose its sound.
Sound to spelling
Listen. Choose the word you studied.
Spelling to sound
Read the whole word. Choose its sound.
Sound to spelling
Listen. Choose the word you studied.
Spelling to sound
Read the whole word. Choose its sound.
Sound to spelling
Listen. Choose the word you studied.
Spelling to sound
Read the whole word. Choose its sound.
Which consonant controls tone in ขวา?
Read the familiar irregular ทร in ทราย.
What is silent in จันทร์?
Write the pictured word
Write the pictured word, including every vowel and tone mark.

Listen and write
Listen and write every sign in its printed order.
Listen and write
Listen and write every sign in its printed order.
A short return
Listen to an earlier word. Choose its spelling.
Finish practice to save this unit.
You can read and write this
Recognise true clusters, irregular ทร and cancellation.

ปลา
fishกลัว
be afraidขวา
right, directionทราย
sandจันทร์
moon / Monday in วันจันทร์