charter vs engage

charter

verb
  • To lease or hire something by charter. 

  • To grant or establish a charter. 

  • (of a peace officer) To inform (an arrestee) of their constitutional rights under the Canadian Charter of Rights and Freedoms upon arrest. 

adj
  • Leased or hired. 

noun
  • A special privilege, immunity, or exemption. 

  • A deed (legal contract). 

  • The temporary hiring or leasing of a vehicle. 

  • A contract for the commercial leasing of a vessel, or space on a vessel. 

  • a provision whose unintended consequence would be to encourage an undesirable activity 

  • A similar document conferring rights and privileges on a person, corporation etc. 

  • A document issued by some authority, creating a public or private institution, and defining its purposes and privileges. 

engage

verb
  • To arrange to employ or use (a worker, a space, etc.). 

  • To enter into conflict with (an enemy). 

  • To come into gear with. 

  • To enter into (an activity), to participate (construed with in). 

  • To draw into conversation. 

  • To mesh or interlock (of machinery, especially a clutch). 

  • To attract, to please; (archaic) to fascinate or win over (someone). 

  • To guarantee or promise (to do something). 

  • To engross or hold the attention of; to keep busy or occupied. 

  • To bind through legal or moral obligation (to do something, especially to marry) (usually in passive). 

  • To enter into battle. 

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