commemoration vs memory

commemoration

noun
  • The act of commemorating; an observance or celebration to honor the memory of some person or event. 

  • The great festival of the Oxford academic year, usually taking place on the third Wednesday after Trinity Sunday. 

  • That which serves the purpose of commemorating; a memorial. 

  • The specification of individual saints in the prayers for the dead. 

memory

noun
  • The time within which past events can be or are remembered. 

  • Which returns to its original shape when heated 

  • A term of venery for a social group of elephants, normally called a herd. 

  • The ability of the brain to record information or impressions with the facility of recalling them later at will. 

  • A record of a thing or an event stored and available for later use by the organism. 

  • The part of a computer that stores variable executable code or data (RAM) or unalterable executable code or default data (ROM). 

  • Synonym of pelmanism (“memory card game”). 

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