サウナサウナCommon wordFreq.FrequencyTop 20,000Meanings1nounsaunaRefers to the Finnish-style steam bath, widely adopted in Japan. Can also refer to the facility or the activity.from Finnish週しゅう末まつはよくサウナに行いく。I often go to the sauna on weekends.このホテルにはサウナが付ついている。This hotel comes with a sauna.