Hangul syllable Rwet

Its meaning comes from the Korean word that contains it.

뤹 is one Hangul block made from the consonant ㄹ, vowel ㅞ, and final consonant ㅌ. Korean writing groups letters into syllable blocks, so this character supplies one syllable within a word. A Korean IME can compose it from its jamo, the letters used to build Hangul syllables; Unicode can also represent the same syllable as a sequence of those components.

Hangul was devised to write spoken Korean directly and let people read and write without training in Chinese characters. The script dates to 1443; Hunminjeongeum, a book explaining its design, was published in 1446 and describes how initial, middle, and final sounds form syllables. During the Joseon period, Hangul appeared in letters, petitions (requests to officials), household records, novels, and performance scripts, even as Hanja—Chinese characters used in Korean writing—kept official prestige. Hangul later displaced Hanja in official writing.

Why can 뤹 look different between fonts?

The same syllable can be drawn with different proportions and placement.

Unicode can store the syllable as one precomposed block or as its jamo sequence. A font arranges the initial consonant, vowel, and final consonant within a square cell, and their shape, size, and placement can vary. If an app shows the pieces separately, it is displaying a decomposed form; that presentation alone does not mean the syllable changed.