Hangul syllable ssub

It is a Hangul syllable, not a word with a fixed translation.

Hangul writes a spoken syllable as a compact block, usually an opening consonant plus a vowel, with an optional closing consonant. In 쑵, ㅆ opens the block, ㅜ is the vowel, and ㅂ closes it.

King Sejong created Hangul in 1443 to give Korean speech a writing system people could learn and use more easily than relying on Chinese characters. Its explanatory book, Hunminjeongeum (“Correct Sounds for the Instruction of the People”), was completed in 1446. Those dates belong to Hangul and its guide, not to this specific syllable.

How do I type 쑵?

Press Shift+T, then N, then Q in a Korean 2-set input method.

That sequence enters ㅆ, ㅜ, and ㅂ; the input method assembles them into 쑵. The keyboard can still have QWERTY keycaps: Korean input software interprets the keys as Hangul.

Fonts may position or size the component letters differently inside the square syllable cell. That changes the appearance, not the character. Line wrapping keeps the block together.

Why is 쑵 pronounced 쑴 in 쑵니다?

Before ㄴ, final ㅂ shifts to the m sound.

The Korean Basic Dictionary lists 쑵니다 as a formal sentence-ending form of 쑤다, a verb for making porridge or meju (a block of fermented soybeans). The final ㅂ is heard as m before ㄴ, so 쑵니다 is pronounced 쑴니다 even though the spelling stays the same.