一通 [ㄧ ㄊㄨㄥˋ; yi1 tong4]
  one time
  once
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  一通
  いっつう
  noun (common) (futsuumeishi)
  one copy (of a document)
  one letter
  see: 一方通行
  abbreviation
  one-way traffic
  see: 一気通貫・いっきつうかん
  abbreviation
  [sometimes written イッツー]
  pure straight (mahjong)
  winning hand containing nine consecutive tiles of the same suit (i.e. 1-9)
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