Hangul syllable Jjweolt

It is one Hangul syllable; its word meaning depends on context.

Hangul groups an initial consonant, a vowel, and a final consonant cluster into one square. These component letters are called jamo. In this block they are ᄍ + ᅯ + ᆴ.

Why was Hangul created?

It was created to make Korean easier to write. Hangul’s documented development was complete in 1443; the guide 훈민정음, which explained the new letters, was published in 1446. Writing Korean with Chinese characters, or with Idu, an earlier method that adapted them to Korean, required conventions that were difficult for many people to learn.

Square syllable blocks could sit beside Chinese-character writing. Names shifted too: 국문 (“national writing”) was common after the 1894 Gabo Reform; 한글 appears in records from the early 1910s and was widespread by 1928. Those are milestones for Hangul, not the origin date of this exact syllable.

How do I type 쭱?

A Korean input method can compose its jamo parts into one block.

Enter ㅉ + ㅝ + ㄾ with Korean input. In an editor with Unicode code-point entry, enter U+CB71 and invoke its conversion command; shortcuts vary by app. Unicode’s NFC form keeps the precomposed block; NFD stores separate Hangul letters in joining forms, called conjoining jamo. Fonts and text engines must join those pieces for the syllable to display as one block.