Diphthongs
Grammar Rule in 30 Seconds
Lao diphthongs are two vowel sounds blended into one syllable, requiring a smooth transition from the first to the second sound.
- Diphthongs act as a single unit: 'ia' in 'mia' (wife) is one sound.
- The mouth shape must glide: start at the first vowel and slide to the second.
- Duration matters: keep the glide smooth to avoid splitting it into two distinct syllables.
Meanings
A diphthong is a complex vowel sound formed by the combination of two vowel elements within a single syllable.
Front-to-back glide
Gliding from a high front position to a central position.
“ເມຍ (mia)”
“ເສຍ (sia)”
Back-to-front glide
Gliding from a back position to a front position.
“ຕົວ (tua)”
“ຮົວ (hua)”
Diphthong Formation
| Diphthong | Start Position | End Position | Example |
|---|---|---|---|
| ia | High Front | Central | mia |
| ua | High Back | Central | tua |
| ua | High Back | Central | bua |
Reference Table
| Form | Structure | Example |
|---|---|---|
| Affirmative | C + Diphthong | mia |
| Negative | ບໍ່ + C + Diphthong | ບໍ່ເສຍ |
| Question | C + Diphthong + ບໍ່ | ເສຍບໍ່? |
| Short Answer | Diphthong word | ເສຍ |
| Variation | Diphthong + Tone | ເສຍ (low tone) |
| Variation | Diphthong + Tone | ເສຍ (high tone) |
フォーマル度スペクトル
ພັນລະຍາ (Family status)
ເມຍ (Family status)
ເມຍ (Family status)
ແຟນ (Family status)
Diphthong Glides
Front-to-Center
- ia i to a
Back-to-Center
- ua u to a
Monophthong vs Diphthong
How to Pronounce
Start sound?
Common Diphthong Words
People
- • mia
- • tua
Actions
- • sia
Examples by Level
ລາວມີເມຍ.
He has a wife.
ຕົວນີ້ແມ່ນຫຍັງ?
What is this one?
ຂ້ອຍເສຍເງິນ.
I lost money.
ບົວສວຍງາມ.
The lotus is beautiful.
ເຈົ້າເຫັນຕົວນັ້ນບໍ່?
Do you see that one?
ລາວເສຍໃຈຫຼາຍ.
He is very sad.
ດອກບົວບານແລ້ວ.
The lotus flower has bloomed.
ເມຍລາວເປັນຄົນລາວ.
His wife is Lao.
ການເສຍສະຫຼະແມ່ນສິ່ງທີ່ດີ.
Sacrifice is a good thing.
ຕົວລະຄອນນີ້ໜ້າສົນໃຈ.
This character is interesting.
ລາວມີຄວາມເມຍຕາ.
He has kindness (mercy).
ບົວລະບັດຮັກສາ.
To take care of/maintain.
ການເສຍປຽບໃນການເຈລະຈາ.
Being at a disadvantage in negotiations.
ຕົວເລກນີ້ບໍ່ຖືກຕ້ອງ.
This number is incorrect.
ເມຍຫຼວງ ແລະ ເມຍນ້ອຍ.
First wife and minor wife.
ບົວລະບັດສວນ.
Gardening/tending the garden.
ການເສຍຫາຍທາງເສດຖະກິດ.
Economic damage.
ຕົວແທນຂອງບໍລິສັດ.
Company representative.
ເມຍຂວັນຂອງຂ້ອຍ.
My beloved wife.
ບົວລະບັດສຸຂະພາບ.
Health maintenance.
ເສຍສູນເສຍຄວາມໝັ້ນໃຈ.
To lose one's center/confidence.
ຕົວຕົນທີ່ແທ້ຈິງ.
True identity.
ເມຍເອກເມຍຮອງ.
Legal wife and secondary wife.
ບົວລະບັດຮັກສາວັດທະນະທຳ.
Preserving culture.
Easily Confused
Learners often treat all vowels as monophthongs.
Triphthongs have three sounds; diphthongs have two.
Learners insert a stop between vowels.
よくある間違い
mi-a
mia
tu-a
tua
si-a
sia
miaa
mia
Sentence Patterns
ຂ້ອຍມີ___.
ລາວ___ເງິນ.
___ນີ້ສວຍງາມຫຼາຍ.
ເຈົ້າເປັນ___ຂອງລາວ.
Real World Usage
ເມຍຂ້ອຍງາມ.
ເສຍດາຍເດ.
ຂ້ອຍເປັນຕົວແທນ.
ບົວສວຍ.
ສັ່ງບົວ.
ການເສຍສະຫຼະ.
Record yourself
Don't stop
Slow down
Listen to natives
Smart Tips
Slide your tongue quickly.
Don't pause.
Keep airflow steady.
Round your lips.
発音
Glide speed
The transition should be quick and smooth.
Falling
mia ↘
Statement of fact
Memorize It
Mnemonic
Slide your tongue like a sled on snow, from the high mountain down to the valley below.
Visual Association
Imagine a slide in a playground. You start at the top (the first vowel) and slide down to the bottom (the second vowel).
Rhyme
Start at the top, slide to the base, keep it smooth, keep up the pace.
Story
My wife (mia) went to the garden to see the lotus (bua). She felt sad (sia) because she lost (sia) her favorite toy (tua).
Word Web
チャレンジ
Record yourself saying 'mia' 10 times, ensuring it sounds like one syllable, not two.
文化メモ
The glide is often very tight.
The glide may be slightly more elongated.
Pronunciation of 'ua' can vary slightly.
Lao diphthongs evolved from Proto-Tai vowel systems.
Conversation Starters
ເຈົ້າມີເມຍບໍ່?
ຕົວນີ້ແມ່ນຫຍັງ?
ເຈົ້າເສຍຫຍັງບໍ່?
ບົວນີ້ສວຍຫຼາຍບໍ່?
Journal Prompts
Test Yourself
Which word contains a diphthong?
ຂ້ອຍມີ___.
Find and fix the mistake:
Is 'mi-a' correct?
Match each item on the left with its pair on the right:
ລາວ / ເມຍ / ມີ
Diphthongs are two syllables.
A: ເຈົ້າມີເມຍບໍ່? B: ___.
Pronounce 'tua'.
Score: /8
練習問題
8 exercisesWhich word contains a diphthong?
ຂ້ອຍມີ___.
Find and fix the mistake:
Is 'mi-a' correct?
Match 'mia' to meaning.
ລາວ / ເມຍ / ມີ
Diphthongs are two syllables.
A: ເຈົ້າມີເມຍບໍ່? B: ___.
Pronounce 'tua'.
Score: /8
よくある質問 (8)
They take practice but are very manageable.
Look for compound vowel markers.
No, that changes the meaning.
No, only some.
Yes, Lao diphthongs are more controlled.
Record and listen.
Yes, they are standard.
Keep practicing the glide.
In Other Languages
Diptongos
Lao diphthongs are tied to specific script markers.
Diphtongues
French relies more on nasalization.
Diphthonge
German diphthongs are not as strictly controlled by tone.
Nijuuboin
Japanese does not have true diphthongs in the same way.
Diphthongs
Lao has a wider variety of vowel combinations.
Compound vowels
Chinese diphthongs are influenced by four tones.
