What 뵟 means
By itself, it has no standard word meaning.
It is one Hangul syllable block, built from ㅂ, a starting consonant; ㅚ, a vowel; and ㅊ, an ending consonant. Inside a Korean word or name, the full spelling supplies the meaning.
Why does Hangul use syllable blocks?
Hangul groups consonants and vowels into one syllable block.
Hangul's design was recorded in 1443. In 1446, Hunminjeongeum, an explanatory work about the alphabet, described the script's purpose and structure. It aimed to make Korean writing easier to learn and use instead of depending on Chinese characters.
The direct relatives of this block are its Hangul jamo (letters) and other Hangul syllables. Accounts of the script's design discuss Chinese sound analysis and the Phags-pa script, used in the Mongol empire; this historical study does not make Hangul a branch of Chinese-character writing. Hangul grew from a royal project into everyday writing, but that history gives 뵟 no extra meaning on its own.
Neutral inside Korean writing; alone, it leaves little to interpret.
Alone, it is not a conventional reaction; the recipient may have no shared cue to read.
What it means when someone sends it to you
2 readingsQuestions people ask
1Why can 뵟 appear as separate jamo?
It can: Unicode represents it either as one precomposed block or as an equivalent sequence of jamo. NFC normalization can join modern jamo into a block; NFD normalization expands the block into jamo. The stored sequence changes, but Unicode treats the text as equivalent.
How to type 뵟
뵟\BD5FCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.