Top matchきりは切羽kirihaNounface; working faceMiningAlso written 切り羽【きりは】kiriha、切端【きりは】kiriha、切り端【きりは】kirihaCopy Listen Pitch on OJAD Explore
落盤らくばんrakubanNoun, Suru verb, Intransitive verbcave-in (in a mine or tunnel); roof collapse; rockfall