warning, caution / commemoration:; The act of commemorating; an observance or celebration to honor the memory of some person or event. / commemoration:; memorial: that which serves the purpose of commemorating. / remembrance:; recollection: The act of remembering; a holding in mind, or bringing to mind. / remembrance:; memory, recollection: The state of being remembered, or held in mind / remembrance:; That which serves to keep in or bring to mind; a memento, a memorial, a souvenir, a token; a memorandum or note of something to be remembered.