To rebuild or reconstruct (physically tearing down and rebuilding, or to reorganize/restore something from the ground up).
古い家を取り壊して建て直したので、耐震性が大幅に向上した。
We tore down the old house and rebuilt it, so its earthquake resistance improved greatly.
地震で被害を受けた小学校を建て直す計画が決まった。
A plan to rebuild the elementary school damaged by the earthquake has been decided.
業績不振の会社を建て直すために、社長が構造改革に着手した。
The president began structural reforms to restore the struggling company.