assignment vs undertaking

assignment

noun
  • The act of assigning; the allocation of a job or a set of tasks. 

  • A transfer of a right or benefit from one person to another. 

  • A document that effects this transfer. 

  • An assigned task. 

  • The categorization of persons as belonging to the male or female sex. 

  • An operation that assigns a value to a variable. 

  • A position to which someone is assigned. 

  • A task given to students, such as homework or coursework. 

  • The categorization of something as belonging to a specific category. 

undertaking

noun
  • The act of one who undertakes (in either sense). 

  • A promise or pledge; a guarantee. 

  • That which is undertaken; any business, work, or project which a person engages in, or attempts to perform; an enterprise. 

  • The business of an undertaker, or the management of funerals. 

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