飛ひ行こう便びん

noun

airmail; air service; flight (for mail/goods)

Refers to mail or cargo sent by air, or the air transport service itself. Often used in contexts like 飛行便で送る (send by airmail).

• この小こ包づつみを飛ひ行こう便びんで送おくってください。

  Please send this parcel by airmail.

• 飛ひ行こう便びんなら明日あしたには届とどきます。

  If sent by airmail, it will arrive tomorrow.