Translation guide
In mahjong, a winning hand that includes two identical sequences (chows) in the same suit. This is a specific yaku (hand pattern) in Japanese mahjong.
The specific winning hand pattern in Japanese mahjong consisting of two identical sequences in the same suit.
Standard Japanese mahjong term for a hand containing two identical sequences (chows) in the same suit. Worth 1 han when the hand is closed.
一盃口は門前で1翻の役です。
Iipeikou is a closed-hand yaku worth 1 han.
Katakana rendering of the same term, commonly used in mahjong texts and apps.
イーペーコーが完成した。
Iipeikou is complete.
一盃口 is only valid when the hand is fully closed (menzen). If you call a tile to complete the second sequence, the yaku is lost.
一盃口 (iipeikou) is one han for two identical sequences. 二盃口 (ryanpeikou) is three han for two sets of identical sequences (essentially two iipeikou).