槓 - lever

dora tile revealed when a player declares a kong

winning on a tile robbed from another player's kong

forming a kong by adding a tile drawn from the wall to a declared pung

kong; four-of-a-kind

turning a concealed pung into an open kong by calling another player's discard

winning hand consisting of four kongs and a pair

three kongs; winning hand containing three kongs

lever

declaring a concealed kong; forming a concealed four-of-a-kind

forming a four-of-a-kind; declaring a kong

forming a four-of-a-kind by adding a self-drawn tile to an open three-of-a-kind