“One copy” in Japanese
Short answer
One copy in Japanese is “一通” (ittsuu). Full meaning: one copy (of a document), one letter.
Other ways to say “One copy” in Japanese
一冊
issatsu one copy (of a book, magazine, etc.), one volume
一部
ichibu one part, one portion, one section; one copy (of a book), (one) complete set (of books)
いちぶ
ichibu one part, one portion, one section; one copy (of a book), (one) complete set (of books)
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