commemorate in WordNet English dictionary

1. 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"
   commemorate  remember 
   
2. be or provide a memorial to a person or an event
   "This sculpture commemorates the victims of the concentration camps"; "We memorialized the Dead"
   commemorate  memorialize  memorialise  immortalize  immortalise  record 
   
3. mark by some ceremony or observation
   "The citizens mark the anniversary of the revolution with a march and a parade"
   commemorate  mark