What does 再建 mean?
再建 is a Japanese noun meaning “(temple or shrine) rebuilding” in English. It is written as 再建 in kanji, さいけん in hiragana, and saiken in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
その城は、１４８５年に全焼して、再建されなかった。
The castle, burnt down in 1485, was not rebuilt.