#   Kanji   Additional Kanji for JLPT  
  こわす 壊す kowasu to break; to break down 1258-2
  はかい 破壊 hakai destruction 1258 1258-2
  くずす 崩す kuzusu to destroy; to pull down 1258-3
6607 ほうかい 崩壊 hookai collapse; decay (physics); crumbling 1258-2