A suit is one of craks, bams, or dots. Each runs 1 through 9, four copies, 36 tiles in a suit.
Name the three suits first: craks are the wan characters, bams are bamboo, dots are circles. Winds and dragons are not suits.
Sichuan 血战到底 makes you name a suit you will not keep. See void suit and Sichuan.
An American card may also name a suit, or ask for a clean hand in one suit. Sequences live inside one suit.
The tiles lesson starts with the three suits.
Winds and dragons are not suits. A suit is craks, bams, or dots.