入れ子
  入れ籠
  いれこ
  noun (common) (futsuumeishi)
  nest (of boxes)
  nesting
  concealed information
  入れ子
  adopting a child after one's own has died
  child adopted in this manner
  see: 櫓杭
  cavity in an oar (fitted onto a peg as part of a traditional oarlock)
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