Hangul syllable Heunh

Three Hangul jamo form one syllable block. Hangul is Korea’s writing system; a jamo is one of its consonant or vowel letters. In 흖, ᄒ is the initial consonant, ᅳ the vowel, and ᆭ the final consonant cluster. “Heunh” describes this structure in the Unicode name; it is not a Korean word translation.

Why are Hangul letters grouped into blocks?

To write Korean speech more directly. Hangul was devised under King Sejong to help people write spoken Korean that Chinese characters did not represent well and to make reading and writing easier. The new writing system was named Hunminjeongeum. The Sejong Sillok, a royal chronicle, records it in lunar 1443; an explanatory book was published in 1446.

The Haerye, the guide explaining the letters, describes how initial consonants, vowels, and final consonants combine. Those dates belong to Hangul’s history; 흖 is one character built under that system, not a separately invented sign.

Why does 흖 appear as a box?

A box or blank usually means the font lacks a glyph. A font without a drawing for 흖 may show a box, blank, or fallback mark. If you see 흖 instead, the text is displaying its decomposed jamo sequence rather than one precomposed block; the character’s construction has not changed.

On a Korean input method, enter ㅎ, ㅡ, then the final cluster ㄶ; it may assemble them as 흖. The exact key sequence depends on the keyboard layout.