Hangul syllable rwim

The Korean word or name around 륌 gives it meaning.

Hangul groups an initial consonant, a vowel and sometimes a final consonant into a square syllable block. The component letters are called jamo: 륌 brings together ㄹ, ㅟ and final ㅁ. That block gives the reader a syllable to pronounce; its role in a word or name supplies the meaning.

Hangul was completed in 1443–1446: it was completed in 1443 and proclaimed in 1446. It was designed to represent Korean more directly and to be easier to learn than relying on Chinese characters alone. The modern set of precomposed Hangul syllables follows the Johab set in Korea’s 1992 KS C 5601 character standard.

How does a Korean keyboard enter 륌?

On Dubeolsik, enter ㄹ, then ㅟ, then final ㅁ.

On Dubeolsik, the standard Korean two-set keyboard, ㅟ is entered as ㅜ followed by ㅣ. With QWERTY key labels, the sequence is f-n-l-a: f for ㄹ, n then l for ㅟ, and a for final ㅁ. A Korean input method combines those keystrokes into one syllable block.

Fonts may place or shape Hangul components differently. That is typography; the text character remains 륌.