noun
mahjong player; mahjong enthusiast
Refers to a person who plays mahjong, often with a connotation of skill or serious interest. Used in mahjong contexts.
彼はプロの雀士として活躍している。
He is active as a professional mahjong player.
週末は雀士たちが集まる雀荘に行く。
On weekends I go to a mahjong parlor where mahjong players gather.