person-to-person vs sincere

person-to-person

adj
  • Such that the caller is only connected and charged if the person he specified is available to speak. 

  • Such that the lender and borrower are individuals rather than companies. 

sincere

adj
  • Genuine; meaning what one says or does; heartfelt. 

  • Meant truly or earnestly. 

How often have the words person-to-person and sincere occurred in a corpus of books? (source: Google Ngram Viewer )