連風牌
also: れんぷうはい
Meanings
1
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
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).
2
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
I called pung on the double wind tiles and got 2 fan for the value tile yaku.