What does Pong mean in mahjong?

What does Pong mean in mahjong? Pong – This is when a player has a set composed of three identical tiles. Reversible Tiles – These are tiles which have the exact same look when they are inverted.

Pong – This is when a player has a set composed of three identical tiles. Reversible Tiles – These are tiles which have the exact same look when they are inverted.