Hangul Syllable Dyes

It is one Korean syllable, not a symbol with its own definition.

Hangul arranges Korean consonant and vowel letters into compact syllable blocks. This block puts ㄷ first, ㅖ in the middle, and ㅅ at the end; its meaning depends on the Korean word or sentence it belongs to.

Unicode names Hangul blocks algorithmically: D, YE, and S are romanized labels for these parts, so “Dyes” is not an English translation. Hangul was designed to make writing Korean more accessible than the Chinese-character practices then in use. The earliest recorded creation notice is from 1443; the 1446 Hunminjeongeum, a guide to Hangul, explains its purpose and design. Earlier methods called Idu, Hyangchal, and Gugyeol adapted Chinese characters to write Korean. They are related writing practices, not visual ancestors of this block. Hangul became the standard script for Korean.

How do I type 뎻?

On a Korean keyboard, enter ㄷ, then ㅖ, then ㅅ.

A Korean input method editor (IME) combines the initial ㄷ, middle vowel ㅖ, and final consonant ㅅ into the block. Some IMEs decide from the following input whether a consonant closes one syllable or begins the next.

Unicode can store the same syllable as one ready-made block or as a sequence of jamo, the letters that build Hangul syllables. Normalization may change the stored sequence while preserving the same text.