ㄱMolar soundvelar · /k/
The back of the tongue rises to close off the throat. The bend in ㄱ is that cross-section.
HANGUL GUIDE · 4 LESSONS
How Hangul Works
Hangul was designed in the fifteenth century. The five basic consonants reflect speech organs, and the original vowel signs represent sky, earth and human. Understanding these patterns helps you learn the letters and practise typing.
·skyARAEA
ㅡearthEU
ㅣhumanI
1 CONSONANTS
Drawings of a mouth making a sound
There are only five basic consonants. Each one is a picture of what the mouth actually does to make that sound.
ㄴTongue soundalveolar · /n/
The tip of the tongue touches the ridge behind the upper teeth. ㄴ is that tongue, seen from the side.
ㅁLip soundbilabial · /m/
A closed mouth seen head-on. ㅁ is the square the lips themselves make.
ㅅTooth soundsibilant · /s/
The pointed shape of the front teeth. ㅅ draws the air hissing between them.
ㅇThroat soundinitial ∅ · final /ŋ/
The original letter depicts the open throat. In modern Korean, ㅇ is silent at the start of a syllable and represents /ŋ/ at the end, as in 강.
Related shapes, different sounds
Many consonants build on the five basic shapes. For example, ㄱ and ㅋ are related, and ㅋ is aspirated. Added strokes do not always mean more breath: ㅁ and ㅂ differ in how the sound is produced, while doubled letters such as ㄲ mark tense consonants.
| BASE | +1 STROKE | +2 STROKES | WHAT CHANGES |
|---|---|---|---|
| ㄱk | ㅋkʰ | The throat closes, then bursts open with breath | |
| ㄴn | ㄷt | ㅌtʰ | A touching tongue becomes a blocking one, then a bursting one |
| ㅁm | ㅂp | ㅍpʰ | The lips part and the breath bursts through |
| ㅅs | ㅈtɕ | ㅊtɕʰ | A hissing sound becomes one that sticks, then releases |
| ㅇ∅ / ŋ | ㅎh | Breath rubs its way out through the open throat |
ㄹ sits outside this rule: it was drawn separately, for the tongue flicking as it rolls. The doubled consonants ㄲ ㄸ ㅃ ㅆ ㅉ stack the same letter twice, meaning the throat tightens further.
On the keyboard
A doubled consonant is not a new key — it is the basic consonant with Shift. Hold Shift on ㄱ and you get ㄲ. The principle of adding to strengthen survives in the layout itself.
2 VOWELS & BLOCKS
Twenty-one vowels from three strokes
The vowels copy nothing. Three strokes — sky, earth, human — are fixed in advance, and every vowel comes from where the dot is placed.
First branch — where the dot goes
A dot above the earth stroke gives ㅗ, below it ㅜ. To the right of the human stroke gives ㅏ, to the left ㅓ. Four positions, four letters.
ㅗo · above
ㅜu · below
ㅏa · right
ㅓeo · left
Second branch — one dot more
A second dot in the same position adds a y sound in front: ㅗ→ㅛ, ㅜ→ㅠ, ㅏ→ㅑ, ㅓ→ㅕ. The number of dots is the layer of the sound.
ㅛyo
ㅠyu
ㅑya
ㅕyeo
Blocks — a letter fills one square
Hangul does not lay its letters out in a row — it stacks them into one square. The vowel decides how. An upright vowel (ㅏ ㅣ ㅓ) sits beside the consonant; a lying-down vowel (ㅗ ㅡ ㅜ) sits beneath it.
하 — side by side
An upright vowel stands to the right of the first consonant.
호 — stacked below
A lying-down vowel lies under the first consonant.
한 — with a final consonant
The final sound always lies along the floor of the square, and the three parts divide it between them.
On the keyboard
The standard layout splits along exactly this seam — consonants on the left hand, vowels on the right. Type ㅎ, ㅏ, ㄴ in order and the three letters assemble themselves into the single square 한. Blocking is the keyboard's job, not yours.
3 HISTORY
A script made for people — with its birth recorded
Korean speech did not fit Classical Chinese writing, and learning Chinese characters demanded time that most ordinary people did not have. King Sejong created a writing system that people could learn and use for their own words.
WHO MADE HANGUL?
The creator named in the record is King Sejong
The Annals and Jeong Inji’s postface say that Sejong created the twenty-eight letters. Eight Hall of Worthies scholars wrote the Haerye explanations and helped prepare the publication. The surviving record therefore distinguishes the king’s creation from the scholars’ work of explanation and promulgation.
WHY IS IT EXCEPTIONAL?
Its maker, date, purpose and principles survive together
The Hunminjeongeum Haerye preserves the creator, purpose and design principles of Hangul in a contemporary document. Its preface explains the aim of helping ordinary people express themselves in writing.
The letters are completed
The Annals record that King Sejong completed twenty-eight new letters and named them Hunminjeongeum — Proper Sounds for the Instruction of the People.
Opposition reaches the throne
Choe Malli and other officials argued against the new writing system. Sejong answered their objections and continued the work instead of abandoning it.
Hunminjeongeum is published
The letters were promulgated with the Haerye, a book recording their purpose, design principles, sounds and examples of use.
A Memory of the World
UNESCO added the Hunminjeongeum Manuscript to the Memory of the World Register for its singular documentary value.
HANGEUL DAY · A NATIONAL HOLIDAY
A country that celebrates the birth of its script
South Korea marks 9 October as Hangeul Day, a national holiday honoring the promulgation of Hunminjeongeum and the value of Hangul. The first modern celebration was held in 1926 under the name Gagyanal; the discovery of the Haerye manuscript later provided the basis for today’s date.
4 GRAMMAR
Hangul is the script; Korean has the grammar
Hangul tells you how Korean sounds are written. Korean grammar tells you how those written words work together. Start with four patterns and you can already see the skeleton of an everyday sentence.
SUBJECT저는+OBJECT한글을+PREDICATE배워요
1 · Word order
The verb waits at the end
A common Korean sentence follows subject–object–verb order. The action or state closes the sentence.
저는 김치를 먹어요.I · kimchi · eat
2 · Particles
Small endings show each role
은/는 marks a topic, 이/가 a subject, 을/를 an object, and 에/에서 a place or setting. That is why Korean word order can sometimes move.
서울에서 한글을 배워요.in Seoul · Hangul · learn
3 · Conjugation
The ending carries time and tone
Korean predicates do not change for I, you or they. Their endings change for tense, politeness and the kind of sentence instead.
먹어요 · 먹었어요 · 먹을 거예요eat · ate · will eat
4 · Context
Known information can disappear
A subject or object is often omitted once the context makes it clear. A complete Korean sentence can therefore be much shorter than its English translation.
먹었어요? — 네, 먹었어요.Did [you] eat? — Yes, [I] ate.
The safest first speaking style
Use the polite -요 style first: 안녕하세요, 감사해요, 먹어요. It works in most everyday situations without sounding either too stiff or too casual. Formal -습니다 and casual speech can come after this foundation.