How to say "rubble" in Japanese

• 瓦礫がれきCommon
  nounThe common word for rubble as debris and wreckage — the broken tiles, stones, and other material left after an earthquake, fire, or building collapse. Use this for the general sense in most contexts.
  一連いちれんの爆発ばくはつで、その研究けんきゅう施設しせつは瓦礫がれきの山やまと化かした。↗

  A series of blasts reduced the laboratory to ruins.
• 割り石わりいし
  nounLiterally 'broken stones' — pieces of split or broken stone. It points to the stones themselves as material rather than scenes of destruction; for disaster rubble it is seldom the word you want.
• 荒石あらいし
  nounChiefly unprocessed stone — rough stone before it has been cut or shaped. Its use for 'rubble' is marginal; for debris or wreckage after a collapse it is rarely the word you want.

瓦礫 is the common word for rubble as debris or wreckage from collapsed buildings and disasters; 「割り石」 and 荒石 are less common, narrower terms for broken stones and unprocessed stone respectively.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 瓦礫がれきrubble
• 割り石わりいしbroken stones
• 荒石あらいしunprocessed stone