Hangul syllable Ggwan

It marks a syllable sound; the surrounding word gives the meaning.

Hangul combines its basic letters, called jamo, into syllable blocks. In 꽌, ㄲ is the first consonant, ㅘ the vowel, and ㄴ the final consonant. Hangul was designed to make Korean speech easier to write in a period when written communication also relied on Chinese characters. Its first record dates to 1443, and its design principles were published in 1446.

In a Korean pronunciation guide, 꽌 can show how 관 sounds in a word such as 습관; the word's spelling remains 습관. Korean foreign-language spelling rules also render the Vietnamese spelling quan as 꽌. The surrounding text tells you whether it marks spoken Korean or a foreign spelling.

What if someone sends 꽌 alone?

Read it as a syllable or spelling clue, not a complete message.

A bare block gives you a syllable, not a complete word or message. If it came from a language note, check whether it marks spoken Korean or a Korean rendering of a foreign spelling.