Korean–Japanese Particle Mapping: Where 은/는 and は Differ
What maps 1:1 and what doesn't
The particle systems of Korean and Japanese are a famous case of similarity in world linguistics. Most particles map 1:1.
Key Mapping
은/는 ↔ は (topic marker)
이/가 ↔ が (subject)
을/를 ↔ を (object)
에 ↔ に (location/direction)
에서 ↔ で (place/means)
의 ↔ の (possessive)
도 ↔ も (also)
만 ↔ だけ (only)
Where Mapping Breaks
Korean -에게/-한테 (to a person) maps to Japanese に, but に covers location, time, and target — broader scope.
Korean -로/-으로 (direction/means) sometimes splits into で (means) and に (direction) in Japanese.
Key Points
1
Core 3 particles (topic/subject/object) map nearly 1:1
2
Additional particles also have high correspondence rates
3
Scope differences in -에게 vs に, -로 vs で/に can cause mistranslation
4
Particle omission frequency: Japanese omits more often than Korean
Use Cases
Mechanical conversion using particle mapping in KR-JP translation
Leveraging Korean particle knowledge for Japanese particle learning