remembrance ,
n :
The act of remembering; a holding in mind, or bringing to mind; recollection. The state of being remembered, or held in mind; memory, recollection. Something remembered; a person or thing kept in memory. 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. The power of remembering; the reach of personal knowledge; the period over which one's memory extends. (obsolete) Something to be remembered; an admonition, counsel, instruction. The September 11 attacks took place 15 years ago on this day in 2001.