balcony vs lyceum

balcony

noun
  • An accessible structure overlooking a stage or the like. 

  • An accessible structure extending from a building, especially outside a window. 

lyceum

noun
  • A public hall designed for lectures, readings, or concerts. 

  • A school, especially European, at a stage between elementary school and college, a lycée. 

  • An association for literary improvement. 

How often have the words balcony and lyceum occurred in a corpus of books? (source: Google Ngram Viewer )