Hangul syllable ryelg

It joins ᄅ + ᅨ + ᆰ into one syllable.

These component letters are called jamo: ᄅ begins the syllable, ᅨ is its vowel, and ᆰ closes it with ㄹ+ㄱ. In keyboard input, those parts correspond to ㄹ, ㅖ, and ㄺ; batchim is the final consonant part of a syllable.

Before Hangul, Korean writing methods such as Idu, Gugyeol, and Hyangchal adapted Chinese characters to write Korean words or grammar. Hangul offered a more direct alphabetic system. The first record of Hunminjeongeum, an early guide to Hangul, dates to 1443; its 1446 publication explained the script’s purpose and how syllables are built. Hangul later entered everyday and official Korean writing.

What does 롉 mean in Korean?

The word around it supplies the meaning.

Within a Korean word, 롉 is one syllable; the complete word gives its meaning. Sent by itself, it reads as a character sample or fragment, not as a complete word.

How do I type 롉?

Enter ㄹ, then ㅖ, then ㄺ.

A Korean IME composes an initial consonant, vowel, and final cluster in that order; ㄺ is the two-consonant final. The IME joins them into the precomposed block 롉.

The same syllable can be represented as the conjoining-jamo sequence 롉. Fonts and apps may handle that sequence differently, so it may not display as one joined block; the precomposed syllable preserves the one-block form.