1. an object or item that serves to remind one of a person, past event, etc.; keepsake; souvenir.
2. anything serving as a reminder or warning.
3. Roman Catholic Church: either of two prayers in the canon of the Mass, one for persons living and the other for persons dead.
Etymology: from Latin mementō, “remember”, imperative form of meminī, “I remember”.
Tokyo Ghoul Episode 3 | End cards