commemoration

noun4

1. •
   The act of commemorating; an observance or celebration to honor the memory of some person or event.

   • A statue was built in commemoration of the event.
   • The service was held in commemoration of fallen soldiers.
2. •
   The specification of individual saints in the prayers for the dead.
3. •
   (UK) The great festival of the Oxford academic year, usually taking place on the third Wednesday after Trinity Sunday.
4. •
   That which serves the purpose of commemorating; a memorial.