consensus vs convention

consensus

noun
  • A process of decision-making that seeks widespread agreement among group members. 

  • Average projected value. 

  • General agreement among the members of a given group or community, each of which exercises some discretion in decision-making and follow-up action. 

  • An agreement on some data value that is needed during computation. 

verb
  • To seek consensus; to hold discussions with the aim of reaching mutual agreement. 

convention

noun
  • A formal deliberative assembly of mandated delegates. 

  • A formal agreement, contract, rule, or pact. 

  • A treaty or supplement to such. 

  • A meeting or gathering. 

  • A practice or procedure widely observed in a group, especially to facilitate social interaction; a custom. 

  • The convening of a formal meeting. 

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