再さい建けん

さ

い

け

ん

Common wordJLPTN1Freq.FrequencyTop 10,000

Meanings

noun, noun or participle which takes 'suru', transitive verb

Used for physical structures, organizations, systems, or personal recovery. Often implies restoring something to a former or improved state.

地じ震しんの後あと、市しは橋はしの再さい建けんを急いそいだ。
After the earthquake, the city hurried to rebuild the bridge.

彼かれは会かい社しゃを再さい建けんするために新あたらしい戦せん略りゃくを立たてた。

He devised a new strategy to rebuild the company.

noun, noun or participle which takes 'suru', transitive verb

protoform reconstruction

linguistics

Technical term in historical linguistics for reconstructing earlier forms of a language.

言げん語ご学がく者しゃは祖そ語ごの再さい建けんに比ひ較かく法ほうを用もちいる。
Linguists use the comparative method for protoform reconstruction.

復ふっ興こう
復興 is more about revival or resurgence, often after a disaster, and can be intransitive. 再建 focuses on the act of rebuilding or reconstructing something specific, and is typically transitive.
再さい構こう築ちく
再構築 is similar but often used for abstract systems, theories, or software, while 再建 is more common for physical structures and organizations.

Compound of 再 (sai, 'again') and 建 (ken, 'build'). The reading is on'yomi. The word is a straightforward Sino-Japanese formation.