noun (common) (futsuumeishi) nest (of boxes);nesting

noun (common) (futsuumeishi) concealed information

noun (common) (futsuumeishi) computing only applies to 入れ子 nested structure

noun (common) (futsuumeishi) dated term only applies to 入れ子 adopting a child after one's own has died;child adopted by a parent of a deceased child

noun (common) (futsuumeishi) cavity in an oar (fitted onto a peg as part of a traditional oarlock)