Highcliffe-on-Sea vs Sound

Highcliffe-on-Sea

name
  • Synonym of Highcliffe, Dorset, England. 

Sound

name
  • Synonym of Plymouth Sound, Devon, England. 

  • The strait that separates Zealand (an island of Denmark) from Scania (part of Sweden); also sometimes called by the Danish name, Øresund. 

How often have the words Highcliffe-on-Sea and Sound occurred in a corpus of books? (source: Google Ngram Viewer )