be or provide a memorial to a person or an event "This sculpture commemorates the victims of the concentration camps" "We memorialized the Dead"
call to remembrance
keep alive the memory of someone or something, as in a ceremony "We remembered the 50th anniversary of the liberation of Auschwitz" "Remember the dead of the First World War"
mark by some ceremony or observation "The citizens mark the anniversary of the revolution with a march and a parade"