# 効 — Effective

Frequency rank 522 / 2,608 in published Japanese.

Mid-frequency: not on every page, but regular in books and magazines.

More common than 路 (Road), less common than 裁 (Judge).

- On’yomi: こう
- Kun’yomi: き
- Radical: 力 Power (Kangxi 19)
- Frequency path: Level IV of XX

Mix on the left blends with power on the right — when you mix ingredients with power, the result is highly effective, a potent combination.

In words:

- 効く きく — to be effective
- 効果 こうか — effect,effectiveness,efficacy,result
- 効力 こうりょく — effect,efficacy,validity,potency

[Study 効](https://app.kanjidrift.com/study?kanji=%E5%8A%B9)

[← Rank 521: 裁 (Judge)](https://kanjidrift.com/frequency/裁.md) · [Rank 523: 路 (Road) →](https://kanjidrift.com/frequency/路.md)

[HTML](https://kanjidrift.com/frequency/効/) · [Full ranking](https://kanjidrift.com/frequency.md)