certificate vs document

certificate

noun
  • A document containing a certified statement. 

  • A document evidencing ownership or debt. 

  • A motion picture age rating. 

  • A document serving as evidence that a person has completed an educational course, issued either by an institution not authorised to grant diplomas, or to a student not qualifying for a diploma. 

  • The information needed in order to verify a positive answer to a problem. 

verb
  • To supply with a certificate, especially following certification. 

document

noun
  • An original or official paper used as the basis, proof, or support of anything else, including any writing, book, or other instrument conveying information pertinent to such proof or support. 

  • An object conveying information by whatever means, capable of being indexed alongside other similar objects. 

  • Any material substance on which the information is represented by writing. 

  • A file that contains text. 

verb
  • To furnish with documents or papers necessary to establish facts or give information. 

  • To record in documents. 

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