効 – merit, efficacy, efficiency

8 strokesTaught in grade 5#538 in newspaper frequencyN3 vocabulary

The kanji 効 means merit, efficacy, efficiency, benefit. Its on’yomi (Chinese-derived reading) is コウ (kou); its kun’yomi (native Japanese reading) is き.く、ききめ、なら.う (kiku, kikime, narau). It is written with 8 strokes, under radical 力 (no. 19).

Stroke order

Stroke order from KanjiVG. Practise others with the stroke order lookup.

Readings

Type	Reading	Romaji
On’yomi	コウ	kou
Kun’yomi	き.く	kiku
Kun’yomi	ききめ	kikime
Kun’yomi	なら.う	narau

A dot separates the kanji’s part from the okurigana (kana written after it), e.g. まな.ぶ → 学ぶ.

Radical and components

Radical: 力 (Kangxi radical 19). Components: 父・力・亠.

Words using 効

効くきくto be effective効果こうかeffect有効ゆうこうvalid効力こうりょくeffect効率こうりつefficiency無効むこうinvalid効き目ききめeffect

Example sentences

この丸薬は心臓に効く。

These pills act on the heart.

Tatoeba #222554

彼らがいくら弁解しても彼女には何の効果もなかった。

Their excuses cut no ice with her.

Tatoeba #98777

その切符は一週間有効です。

The ticket is valid for a week.

Tatoeba #208558

Kanji with the same radical

力動務加勝勢助労努募勤功勉勧励勇

Sources: KANJIDIC2 (EDRDG, CC BY-SA 4.0), KanjiVG (CC BY-SA 3.0), Tatoeba (CC BY 2.0 FR). About the data.