Skip to content
Nihongo Circle
.
Lessons
Learn
Road map
Study guides
Kana
Dictionary
Grammar
Immersion
Culture
Practice
Tomo challenges
Games
Mock exam
Reading level
Your space
Cosmetics shop
Sign up free
Lessons
Dictionary
Games
Explore
All levels
Study level
Sign in
Dictionary
効
Merit, Efficacy, Efficiency, Benefit
8 strokes
N2
On readings 音読み
こう
Kun readings 訓読み
き.く、ききめ、なら.う
Built from
Mix
Power
Words using 効
効果
こうか
effect
N3
有効
ゆうこう
valid
N3
効く
きく
to be effective
N3
効力
こうりょく
effect
N2
効き目
ききめ
effect
N1
効率
こうりつ
efficiency
N1
無効
むこう
invalid
N1
効率的
こうりつてき
efficient
効く
きく
to be effective, to take effect, to be good (for); to work, to function well
効果
こうか
effect, effectiveness, efficacy, result; effects (e.g. sound effects, visual effects, special effects)
時効
じこう
statute of limitations
逆効果
ぎゃくこうか
opposite effect
Stroke order & more on Jisho
More at JLPT N2
All 1,748 N2 words
All 367 N2 kanji
Everything N2