brevet vs mission

brevet

noun
  • A warrant from the government, granting a privilege, title, or dignity, as in France. 

  • An organized, long-distance bicycle ride — not a race, but a test of endurance — which follows a designated but unmarked route passing through check points. 

  • A military document entitling a commissioned officer to hold a higher rank temporarily, but without an increase in pay. 

  • An authoritative grant or mark of recognition; a seal of approval. 

verb
  • To promote by brevet. 

mission

noun
  • A number of people appointed to perform any service; a delegation; an embassy. 

  • Religious evangelism. 

  • An infrequent gathering of religious believers in a parish, usually part of a larger regional event with a central theme. 

  • A settlement or building serving as a base for missionary work. 

  • A set of tasks that fulfills a purpose or duty; an assignment set by an employer, or by oneself. 

  • Third World charities, particularly those which preach as well as provide aid. 

verb
  • To do missionary work, proselytize. 

  • To send on a mission. 

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