Hangul syllable myoh

It is one Hangul syllable block, not a word meaning on its own.

The block alone cannot tell you whether 묳 belongs to a Korean word; nearby text supplies that context.

Hangul, first called 훈민정음 (“Proper Sounds for the Instruction of the People”), was designed under King Sejong for Korean because Chinese characters were not a good fit for Korean speech. A record of the new writing system dates to 1443; a book explaining its principles followed in 1446. Hangul blocks combine smaller letters called jamo: 묳 contains ㅁ, ㅛ and final ㅎ. 묳 is Hangul, not hanja—the Chinese characters also used in Korean writing.

How do I type 묳?

Switch to a 2-set Korean keyboard and press A-Y-G.

Those keys enter ㅁ-ㅛ-ㅎ; the Korean input method editor (IME) combines them into 묳. Typing the Latin-letter string “myoh” does not enter the same character.

Why can 묳 render differently?

Different fonts and input paths can draw the same text differently.

A sequence of the same Hangul letters kept separate can be canonically equivalent—treated as the same text by Unicode—to 묳. Whether software joins them into one block varies by text engine; separate pieces or different font drawings do not change the underlying characters.