沃 — “Fertility” in Japanese

Master (高手)よう, よく, おく, そそ

Radical ⽔ · radical 85 The building block this kanji is filed under

“Fertility” in Japanese is 沃, read you, yoku, oku (よう, よく, おく, そそ). It is a Jōyō kanji taught in Japanese secondary school (junior & senior high) — the 高手 · Master tier beyond the grade 1–6 Kyōiku set, and appears in words such as 肥沃 (fertile).

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What does 沃 mean?

Full details, readings & example

Kanji	沃
Meaning	Fertility
Readings	よう, よく, おく, そそ
Grade	Master (高手 · secondary school)
Curriculum	Jōyō kanji · Japanese secondary school (JLPT N1–N2)
Example	肥沃 (fertile)

How to read 沃

沃 is read you (よう) or yoku (よく) or oku (おく) or soso (そそ) depending on the word.

Words with 沃

肥沃

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Kanji read the same way as 沃

Same sound, different character — the classic trap. Compare them side by side:

Updated: 2026-08-28