This is the 17904th most frequent Polish word.
łazienką
"Łazienką" means "bathroom" or "with the bathroom" in English, depending on context.
In this sentence, "łazienką" is used in the instrumental case to describe means or location associated with relaxation.
Zawsze się relaksuję w mojej łazienką po długim dniu pracy.
I always relax in my bathroom after a long day at work.
Here, "łazienką" is in the instrumental case as it follows the verb "jest zachwycona," indicating an association with Maria's delight.
Maria jest zachwycona nową łazienką w swoim mieszkaniu.
Maria is delighted with the new bathroom in her apartment.
In this instance, "łazienką" is in the instrumental case, denoting the location where the action of talking took place.