Compounds of 一件

• 一件
  (n) matter
  item
  case
  (P)
• 一件書類
  (n) all the papers (documents) relating to a case
  dossier
• 一件落着
  (n,vs) an issue being settled
  a case being closed
• 件の一件
  (n) the matter in question
  the aforesaid matter