registration vs stipulation

registration

noun
  • The act of signing up or registering for something. 

  • The art of selecting and combining the stops or registers of an organ. 

  • That which registers or makes something official, e.g. the form or paper that registers. 

  • Alignment, e.g. of colors or other elements in a printing process. 

  • The location where guests register, especially with a hotel. 

stipulation

noun
  • The act of stipulating; a contracting or bargaining; an agreement. 

  • Something that is stated or stipulated as a condition of an agreement. 

  • The situation, arrangement, and structure of the stipules. 

  • A goal to be achieved in a chess problem; for example, to checkmate Black within a specified number of moves. 

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