Hangul syllable Rwep

It is a Hangul syllable whose role depends on context.

Hangul is the alphabet used to write Korean; its letters combine in square syllable blocks. The individual letters are called Jamo. Unicode's name Rwep is built from labels for the block's starting consonant, vowel, and ending consonant; it describes the parts rather than translating a Korean word.

Hangul's development was completed in 1443, and the Hunminjeongeum manuscript that introduced the script was published in 1446. The writing system offered a more accessible way to read and write Korean to people facing the barrier of literary Chinese.

Why does 뤺 look different in fonts?

Fonts draw the same block with different stroke styles.

Hangul consonants and vowels fit together inside a square syllable cell. Fonts can change the strokes or spacing without changing which character the block represents.

Unicode can represent a syllable as one preassembled character or as a sequence of its component Jamo. Text software can treat those forms as equivalent. A box means the selected font lacks a Hangul glyph for this character.