楼 — “Watchtower / Lookout / High Building” in Japanese

Master (高手)ろう, たかどの

Radical ⽊ · radical 75 The building block this kanji is filed under

“Watchtower / Lookout / High Building” in Japanese is 楼, read rou, takadono (ろう, たかどの). 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 高楼 (tall building).

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What does 楼 mean?

Full details, readings & example

Kanji	楼
Meaning	Watchtower / Lookout / High Building
Readings	ろう, たかどの
Grade	Master (高手 · secondary school)
Curriculum	Jōyō kanji · Japanese secondary school (JLPT N1–N2)
Example	高楼 (tall building)

How to read 楼

楼 is read rou (ろう) or takadono (たかどの) depending on the word.

Words with 楼

高楼

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Kanji read the same way as 楼

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

Updated: 2026-08-28