noun
pung; three-of-a-kind
In mahjong, a set of three identical tiles (either claimed or concealed).
from Chinese kè zi
彼は發の刻子を作って、一気通貫を狙った。
He made a pung of green dragons and aimed for a full straight.
手牌に同じ牌が三枚あると、刻子
If you have three identical tiles in your hand, you can use them as a pung.