lady of leisure vs pro

lady of leisure

noun
  • A female prostitute. 

  • An unemployed woman or one who has retired from work. 

  • A lady who is of independent means and so does not need employment; one who is free from duties and responsibilities. 

pro

noun
  • A prostitute. 

  • Professional. 

  • A professional sportsman. 

  • A chemical prophylaxis taken after sex to avoid contracting venereal disease. 

  • A person who supports a concept or principle. 

  • An advantage of something, especially when contrasted with its disadvantages (cons). 

adj
  • Professional. 

prep
  • In favor of. 

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