Hangul syllable gyis

It is one written syllable; the surrounding Korean word supplies the meaning.

Unicode represents it as one precomposed block, with the canonical sequence ᄀ + ᅴ + ᆺ: initial consonant, vowel, and final consonant. These are jamo, the component letters used to build Hangul syllables; text processing can expose them separately without changing the syllable.

Hangul was devised in 1443 and formally published in 1446 as a writing system that made Korean easier to write. A syllable block places an initial consonant before a vowel and may add a final consonant.

Is 긧 an emoji?

No. It is a Hangul text character.

It represents a Korean syllable in ordinary text. Its block layout comes from Hangul spelling, not emoji styling.