also: リィウ · リウ
numeric
Used in mahjong to refer to the number six, especially in tile calls and scoring. The reading ロー is used in some mahjong contexts.
from Chinese liù
麻雀で「リュー」は六を意味する。
In mahjong, 'ryū' means six.
リューピンは六筒のことだ。
Ryūpin refers to the six of circles.