Hangul syllable myub

It is one Korean syllable; the surrounding word gives its meaning.

뮵 is assembled from ㅁ at the start, ㅠ as the vowel and ㅂ at the end. It spells one syllable within Korean writing; the complete word tells you what that syllable means.

Hangul's design was completed in 1443, and the 1446 Hunminjeongeum manuscript explained it. Hangul was designed so people could write Korean without first mastering Chinese characters. Earlier writers also adapted Chinese characters through systems such as Idu, Gugyeol and Hyangchal to represent Korean speech and grammar.

How do you type 뮵?

Switch to a Korean IME, then enter ㅁ, ㅠ and ㅂ.

A Korean input method combines those letters into one syllable block. Unicode treats the conjoining jamo sequence 뮵 as canonically equivalent to precomposed 뮵; normalization may compose it, and font shaping controls its display.

Hangul also carried Buddhist and Confucian translations and practical texts. It became official national writing in 1894, then lost that status under Japanese rule in 1910.