pit, hole

Radicals

Common words

• 坑道【こうどう】
  tunnel, (mining) gallery, level, shaft, pit
• 廃坑【はいこう】
  closure of a mine, abandoned mine, disused mine
• 坑内【こうない】
  within a pit or (mine) shaft
• 坑口【こうこう】
  pithead, minehead