assignment vs posting

assignment

noun
  • A document that effects this transfer. 

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

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

  • 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. 

posting

noun
  • An item inserted into a register, ledger or diary. 

  • The place where a soldier or airman is posted for duty; the time spent there. 

  • A message posted to a computerized bulletin board, a newsgroup, a blog, etc. 

  • The action of the verb to post. 

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