Hangul syllable ggags

It is a Korean syllable, not a complete message. Hangul groups Jamo (consonant and vowel letters) into syllable blocks. Read this one as part of the Korean word around it; that word supplies the meaning.

Hangul was devised to make Korean easier to write: Korean differs from Chinese, while Chinese characters and the workarounds then used for Korean were difficult for many people. The script's creation is dated to 1443, and a book explaining it appeared in 1446.

Hangul later appeared in Buddhist and Confucian books, practical texts, royal letters, labels, and everyday writing. In 1894 it became the official writing system of the Korean state. Chinese characters were the older system used for Korean, but they are not parts of 깏.

How do I type 깏?

For Hangul input, use a standard Korean two-set keyboard. An IME, or input method, composes Hangul as you type. Press Shift+R, K, R, T to enter ㄲ, ㅏ, ㄱ, ㅅ; the IME combines the last two into final ㄳ and forms 깏.

In source code, use \uAE4F where your language accepts Unicode escape sequences.

Why does 깏 look different?

It can appear as one block or as separate letters. Fonts can draw the same text character differently.

Unicode normalization changes its representation: NFC generally composes Hangul syllables into one block, while NFD represents this one as separate conjoining Jamo. If the letters display apart, check normalization and Hangul font support before assuming it is a different character.