To call to remembrance by a special act or observance; to celebrate with honor and solemnity; to honor, as a person or event, by some act of respect or affection, intended to preserve the remembrance of the person or event; as, to commemorate the sufferings and dying love of our Savior by the sacrament of the Lord's Supper; to commemorate the Declaration of Independence by the observance of the Fourth of July.

Preserve in memory by a celebration or ceremony.

to celebrate an event or person we want to remember

mark by some ceremony or observation; "We marked the anniversary of his death"

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"

be or provide a memorial to a person or an event; "This sculpture commemorates the victims of the concentration camps"; "We memorialized the Dead"

to honor an outstanding person, place, or event in history.