Hangul syllable 첗

Read it as one syllable within a Korean word. 첗 is built from three Hangul letters: ㅊ, the opening consonant; ㅒ, the vowel; and ㅎ, the final consonant. The block supplies a syllable, while the surrounding Korean word supplies its meaning.

If it arrives alone, ask for the surrounding text or source before deciding what the sender intended.

When was Hangul first written down?

The first written record dates to 1443. The first record of Hunminjeongeum, the Korean writing system later known as Hangul, appears in Sejong Sillok, the annals of King Sejong. An explanatory book appeared in 1446. The system made Korean writing easier to learn and better suited to Korean speech than writing it through Chinese characters.

That record is for the writing system, not the first known use of this particular block. In digital text, Unicode's precomposed Hangul repertoire follows the full Johab set in KS C 5601-1992, an earlier Korean text standard.

How do I type 첗?

Use a Korean IME to assemble its letters. Switch to Korean input and enter ㅊ, ㅒ, then ㅎ. The IME, or input method editor, combines them into the syllable block as you type.