The act of using a sauna.
A very hot place or room.
A room or a house designed for heat sessions.
A public sauna.
In some countries, a business with bath-like facilities that is actually a brothel or a place for (non-commercial) sexual encounters; a bathhouse.
To use a sauna.
Used other than figuratively or idiomatically: see vaulting, school. (A place where one learns to vault.)