Sentence:  In the 18th and early 19th centuries, the beautiful people came here for the season, taking the waters, meeting for tea in the <WSD>Pump Room</WSD> and for balls in the Assembly Rooms. 
Meaning of the word marked with <WSD> tags:  A room or structure at a spa where mineral water is drawn from a spring and consumed, often serving as a venue for polite socializing and conversation.