commemoration

From commemorate +‎ -ion, from Old French commemoration (French commémoration), from Latin commemorātiōnem, verb commemorāre.

• Rhymes: -eɪʃən

commemoration (countable and uncountable, plural commemorations)

1. The act of commemorating; an observance or celebration to honor the memory of some person or event.
2. That which serves the purpose of commemorating; a memorial.
3. (Britain) The specification of individual saints in the prayers for the dead; the great festival of the Oxford academic year, usually taking place on the third Wednesday after Trinity Sunday.