Removal; taking away; dismantling of structures or equipment; can also refer to withdrawal actions (used as a noun or a suru-verb).
工事が終わったら足場を撤去してください。
Please remove the scaffolding after the construction is finished.
不法占拠の撤去が市の命令で行われた。
The illegal occupation was removed by order of the city.
台風の後、倒れた看板の撤去作業が進められている。
After the typhoon, work is underway to remove the fallen signboards.