1.
castle tower; main keep; donjon
The tall, central tower of a Japanese castle, serving as the final defensive stronghold and the symbolic centerpiece of the fortification. Typically a multi-storied structure with distinctive curved rooflines, it was the most visually striking element of castle architecture during the Sengoku and Edo periods.
Also written as 天守閣, which adds the suffix 閣 ('tower; pavilion'). Both forms refer to the same structure, though 天守閣 is the more common form in everyday conversation and tourist contexts.
Etymology
- Castle keeps emerged during the late Muromachi and Sengoku periods (16th century) as military architecture evolved
- 織田信長's 安土城 (1579) is considered the first grand-scale 天守
- Only twelve original 天守 survive today; many others are reconstructions
Common collocations
- 天守閣: castle keep (with pavilion suffix; more common form)
- 天守に登る: to climb the castle keep
- 現存天守: surviving original keep
- 復元天守: reconstructed keep
- 天守台: keep foundation/platform