Synonyms of 'remembrance'
1 commemorationDictionary, memorial, testimonialThey wore black in remembrance of those who had died.
2 souvenirDictionary, token, reminderAs a remembrance, he left a photo album.
3 memoryDictionary, recollection, thoughtHe had clung to the remembrance of things past.
There's rosemary, that's for remembrance – Hamlet]
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A keepsake is a small present that someone gives you so that you will not forget them.
a keepsake of their brief encounter
A memento is an object which you keep because it reminds you of a person or a special occasion.
He took a camera to provide a memento of the day.
Thesaurus for remembrance from the Collins English Thesaurus
If you do something in remembrance of a dead person, you do it as a way of showing that you want to remember them and that you respect them.