a Finnish steam bath; steam is produced by pouring water over heated rocks
"After working out, he stepped into the sauna to relax and sweat in the traditional Finnish style where steam rises from hot rocks."
A room or a house designed for heat sessions.
"The couple spent their evening relaxing in the sauna after finishing a long swim."
In plain English: A sauna is a small, steamy room where people sit to relax and sweat out their muscles after exercise.
"After working out, I stepped into the sauna to relax and sweat out my muscles."
Usage: A sauna refers specifically to an enclosed space used for sweating in high, dry heat rather than the wet steam associated with a traditional Turkish bath. You typically enter a sauna naked while sitting on heated benches and may use wooden ladles to pour water over hot rocks to create additional humidity if desired.
To use a sauna.
"After exercising, she decided to relax by using a sauna."
The word sauna comes directly from the Finnish language, where it originally referred to a steam bath or hot room used for bathing and relaxation. It entered English as a loanword while retaining its specific meaning related to this traditional form of hygiene.