salt water vs vinegar

salt water

noun
  • any water containing dissolved salt; brine 

vinegar

noun
  • Any variety of vinegar. 

  • A sour liquid formed by the fermentation of alcohol used as a condiment or preservative; a dilute solution of acetic acid. 

verb
  • To season or otherwise treat with vinegar. 

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