–ัว, –ัวะ and ◌้
Read long and short ua as complete vowel patterns.
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i
ua, long. Long ua; before a final the ั drops: –ว–.
วัวกัวะi
ua, short. The short partner.
กัวะi
mai tho: tone instruction. This mark helps determine tone. In น้ำ the complete word has high tone; the class-dependent rule comes later.
น้ำHear it in ก้า · ก้าWords to read

วัว
cowwua →
สวน
gardensǔan ↘↗
น้ำ
waternáam ↗กัวะ
Practice syllable: short uakùaReading tips
–ัว · ua, long · Long ua; before a final the ั drops: –ว–.
–ัวะ · ua, short · The short partner.
้ · mai tho: tone instruction · This mark helps determine tone. In น้ำ the complete word has high tone; the class-dependent rule comes later.
–ัว spells long ua in an open syllable: วัว is a cow. Before many final consonants, it becomes –ว–: สวน is s + ua + n. –ัวะ is short. In the common word น้ำ, ำ is pronounced long; learn its complete spelling and sound rather than stretching every ำ word.
The mark ้ above น is a tone instruction. First learn น้ำ with its recording and recognise the mark in the printed word. It does not always mean the same tone: the class-dependent rule is taught after finals and vowel length. Writing marked words starts in the tone-mark unit.
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Read long and short ua as complete vowel patterns.

วัว
cow
สวน
garden
น้ำ
waterกัวะ
Practice syllable: short ua