also: れんぷうはい
noun
tiles matching both round wind and seat wind
In mahjong, these are wind tiles that are simultaneously the prevailing wind (round wind) and the player's own seat wind. They are worth double wind points when collected.
from Chinese lián fēng pái
東場で東家のとき、東は連風牌になる。
In the East round when you are the East seat, the East tiles become 連風牌 (tiles matching both the round wind and your seat wind).
noun
pung or kong of double wind tiles
Refers to the meld (pung or kong) formed by collecting three or four of these double wind tiles. This meld is worth two fan (double wind points).
See also: 役牌
連風牌をポンして、役牌の2飜を得た。
I called pung on the double wind tiles and got 2 fan for the value tile yaku.
圏風牌 refers specifically to the round wind tile only, not necessarily matching the seat wind. 連風牌 is a special case where the tile matches both.
門風牌 is the seat wind tile only. 連風牌 combines both round and seat wind.
役牌 is a general term for value tiles (dragons, round wind, seat wind). 連風牌 is a specific type of 役牌 that yields 2 fan when punged.
From Chinese 連風牌 (lián fēng pái), literally 'connected wind tile'. The reading レンフォンパイ is a direct borrowing from Chinese, while れんぷうはい is a Japanese on'yomi reading that is rarely used.