description vs keyword

description

noun
  • A sketch or account of anything in words; a portraiture or representation in language; an enumeration of the essential qualities of a thing or species. 

  • A descriptive linguistic survey. 

  • The act or practice of recording and describing actual language usage in a given speech community, as opposed to prescription, i.e. laying down norms of language usage. 

  • A set of characteristics by which someone or something can be recognized. 

  • A scientific documentation of a taxon for the purpose of introducing it to science. 

  • The act of describing; a delineation by marks or signs. 

keyword

noun
  • Any important word in a text or document, which may be linked to other words or other information, or at least merely listed in the metadata for searches to find. 

  • A reserved word used to identify a specific command, function, etc. 

  • Any word used as the key to a code. 

  • Any word that occurs in a text more often than normal. 

  • Any word used in a reference work to link to other words or other information. 

verb
  • To tag with keywords, as for example to facilitate searching. 

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