When it comes to synonyms for the words "second balconies", there are a variety of options available. Some of the most common terms used to describe these types of balconies include "upper balconies", "higher balconies", "second story balconies", and "upper level balconies". Additionally, other phrases like "higher level outdoor seating areas" or "upper tier elevated spaces" can be used to describe the same concept. Ultimately, any term that conveys the idea of an outdoor balcony space located on the upper level of a building can be considered a synonym for "second balconies". The actual choice of phrasing will depend on the context and intended meaning of the user.