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Vietnamese Vowels

Vowels: 11 single vowels, diphthongs, and triphthongs

Learning Goal

Can distinguish and pronounce all 11 Vietnamese single vowels and common diphthongs

Exam Skills:Đọc hiểuNghe hiểuNói

Look at these examples. Can you spot the grammar pattern?

Ăn cơm chưa? — Ăn rồi.

Have you eaten yet? — Already ate.

Cô ấy rất đẹp.

She is very beautiful.

Tôi yêu gia đình tôi.

I love my family.

Pay attention to the highlighted parts. What do they have in common?

Nguyên âm — Vietnamese Vowels

Vietnamese has 11 single vowels — more than most European languages. They come in related pairs that differ by mouth rounding or length.

VowelIPALike...Example
a/aː/'father' (long)ba (three/dad)
ă/a/'cut' (short)ăn (eat)
â/ə/'about' (schwa)ân (grace)
e/ɛ/'bed'em (younger sibling)
ê/e/'café' (passionate)
i/y/i/'see'đi (go)
o/ɔ/'law' (open)lo (worry)
ô/o/'go' (closed) (aunt/Miss)
ơ/əː/'fur' (unrounded) (dream)
u/u/'blue' (blind)
ư/ɯ/no English equiv.từ (word/from)

Key pairs: a/ă/â (long/short/schwa), e/ê (open/closed), o/ô/ơ (open-round/closed-round/unrounded), u/ư (rounded/unrounded).

Diphthongs: ai, ao, au, âu, ay, ây, eo, êu, ia, iu, oa, oe, oi, ôi, ơi, ua, uô, ưa, ươ, uy.

i vs y: Both represent /i/. Use i after consonants (đi, chi) and y at the start of syllables (yêu = love) or after certain vowels (uy, ay).

The sheer number of vowels and minimal pairs (a/ă/â, o/ô/ơ) overwhelms most learners. 🇬🇧 English speakers: Merge a/ă/â into one sound. Cannot produce ư (unrounded high back vowel — say 'ee' but pull tongue back). Confuse ơ with English 'uh'. 🇩🇪 German speakers: Advantage with ü (close to ư) and ö (close to ơ). Still confuse the a/ă/â triple. Tend to round ơ like German ö.

Common Error Patterns

Cannot distinguish a, ă, and â

a = long 'ah' (ba = three), ă = short 'a' (ăn = eat), â = schwa/uh (ấy = that). Practice minimal pairs.

Cannot distinguish o, ô, and ơ

o = open round (lo = worry), ô = closed round (cô = Miss), ơ = unrounded (mơ = dream). Say 'oh' → round lips = ô, relax lips = ơ.

Ăn cơm chưa? — Ăn rồi.

Have you eaten yet? — Already ate.

ă in ăn is a SHORT 'a' (like English 'cut'). Compare: an (peace) has LONG 'a'. This greeting is used like 'How are you?'.

Cô ấy rất đẹp.

She is very beautiful.

ô in cô (aunt/Miss) is a CLOSED 'o' (like English 'go'). Compare: co (grass) has OPEN 'o' (like 'law').

Tôi yêu gia đình tôi.

I love my family.

yêu (love) uses y + ê + u — a triphthong! Vietnamese has many complex vowel combinations.

Practice in course

Apply this grammar in A1 course exercises

A1 Course
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