What 랑 means
It links nouns or marks a companion. In Korean, 랑 is a short particle attached to a noun. A following noun makes a list; before an action, it means “with.” When should I use 랑 instead of 이랑? Use 랑 after a vowel-ending noun; use 이랑 after a consonant-ending one.
The Korean writing system Hangul was created in 1443; its principles were published in 1446 to help people unfamiliar with Chinese characters write Korean. Hangul builds syllables from letter blocks; 랑 is one block.
Casual, conversational Korean.
Is 랑 too casual for formal writing? Yes: choose 와/과 for a formal notice.
What it means when someone sends it to you
2 readingsQuestions people ask
1Why does 랑 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type 랑
랑\B791Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.