幽 — “Seclude / Confine To A Room / Deep / Profound” in Japanese

Master (高手)ゆう, ふか, かす, くら, しろ

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“Seclude / Confine To A Room / Deep / Profound” in Japanese is 幽, read yuu, fuka, kasu (ゆう, ふか, かす, くら, しろ). 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 幽霊 (ghost).

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What does 幽 mean?

Full details, readings & example

Kanji	幽
Meaning	Seclude / Confine To A Room / Deep / Profound
Readings	ゆう, ふか, かす, くら, しろ
Grade	Master (高手 · secondary school)
Curriculum	Jōyō kanji · Japanese secondary school (JLPT N1–N2)
Example	幽霊 (ghost)

How to read 幽

幽 is read yuu (ゆう) or fuka (ふか) or kasu (かす) or kura (くら) or shiro (しろ) depending on the word.

Words with 幽

幽霊

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Kanji read the same way as 幽

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

Updated: 2026-08-28