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Six vowels and a silent circle

Day 1 of 10~15 minThe six basic vowels, and the circle ㅇ that lets a vowel stand on its own.
Romanisation help

Korean is written in square blocks, one per syllable, and every block is built from letters. Today covers six vowels and the circle ㅇ, which is silent at the start of a block. By the end you can read 아이 (ai), 'child', and 오이 (oi), 'cucumber', and you will know why each vowel sits where it does.

Why a vowel needs a circle

A Korean syllable block always opens with a consonant slot, and a vowel is never written at the front on its own. When a syllable starts with a vowel sound, the slot is filled with ㅇ, which says nothing in that position, so 아 is simply a. The vowel's shape decides where it goes: the upright vowels ㅏ, ㅓ and ㅣ sit to the right of the consonant, and the flat ones ㅗ, ㅜ and ㅡ sit underneath it. All six were built from three elements, a dot for the sky, a flat line for the ground and an upright line for a person, and the dot has since become a short stroke. A stroke pointing right or up, as in ㅏ and ㅗ, marks a brighter vowel, and one pointing left or down, as in ㅓ and ㅜ, marks its darker partner.

아

Sound
a, as in
How it sounds
Like the a in 'father', but shorter.
Memory hook
The upright line is a person, and the short stroke was once a dot for the sun, placed on the outer side. Open shape, open mouth: a.
Watch for
Saying it like the a in 'cat', which is nearer to ㅐ.
ai
child
sagwa
apple
gabang
bag

어

Sound
eo, as in
How it sounds
Between the o in British 'hot' and the u in 'cup', with the jaw dropped and the lips not rounded.
Memory hook
The mirror image of ㅏ: the stroke points inward, towards the left, and the sound is darker and further back.
Watch for
Rounding the lips so that it drifts towards ㅗ, or reading the romanisation eo as two separate sounds.
eomeoni
mother
meori
head
geogi
there

오

Sound
o, as in
How it sounds
A pure o with rounded lips, like the o in 'more' but short, with no glide at the end.
Memory hook
The flat line is the ground and the stroke points up, towards the sky. Round your lips and push them forward.
Watch for
Adding the English glide from 'go', so that the vowel ends in a w.
oi
cucumber
gogi
meat
moja
hat

우

Sound
u, as in
How it sounds
Like the oo in 'food', with the lips rounded and pushed forward.
Memory hook
The stroke points down, below the ground line: the darker partner of ㅗ.
Watch for
Leaving the lips spread, which gives ㅡ instead.
uyu
milk
gudu
dress shoes
nuna
older sister (said by a male)

으

Sound
eu, as in
How it sounds
An oo made with the lips spread flat, as if smiling, with no rounding at all. English has nothing quite like it; the vowel of 'good' said through a grin is close.
Memory hook
A single flat line, the ground in the original design, and the lips go flat to match.
Watch for
Rounding the lips so that it becomes ㅜ, or skipping it in loanwords such as 스키 (seuki), where it fills the gap between consonants.
geurim
picture
keuda
to be big
eumak
music

이

Sound
i, as in
How it sounds
Like the ee in 'see', but shorter.
Memory hook
A single upright line, a person standing in the original design. The mouth is narrow and spread, like the line.
Watch for
Drawing it out into a long English 'ee' that slides at the end; the vowel stays still.
i
tooth; two
ireum
name
gicha
train

이응

Sound
ng, as in
How it sounds
At the start of a block it is silent and only fills the consonant slot, so 아 is just a. At the end of a block it is the ng of 'sing'.
Memory hook
The circle pictures the open throat, where no consonant is being made at all, which is why it can stand in a block and say nothing.
Watch for
Adding a hard g after a final ㅇ: 강 rhymes with 'sang', with no g released at the end.
ai
child
gang
river
sarang
love

Read these

Every word here uses only letters you have met so far. Say it before you press the speaker.

a
ah (surprise)
eo
oh; er (hesitating)
o
five
u
the syllable u
eu
the syllable eu
i
two; tooth
ai
child
oi
cucumber
au
younger sibling (old-fashioned)

Write today's letters

  • Top to bottom, left to right.
  • Horizontal strokes are written left to right, vertical ones top to bottom.
  • Many corners are turned without lifting the pen, so ㄱ and ㄴ are each a single stroke.
  • ㅇ is drawn anticlockwise, starting from the top.
  • Vowels follow the same order: ㅏ and ㅜ start with the long line, while ㅓ and ㅗ start with the short stroke.
  • In a block, write the consonant first, then the vowel, then any final consonant.

Check yourself

8 questions. Get 5 right to finish the day.