"Kept in remembrance" can be replaced with several synonyms that capture the idea of preserving something in one's memory. Some options include "recalled," "remembered," "recollected," "retained," "cherished," "maintained," "treasured," and "preserved." All of these words imply a conscious effort to hold on to a particular memory, whether it's a cherished moment from the past or an important piece of information. By choosing the right synonym, you can add depth and nuance to your writing, helping readers understand exactly what you mean when you talk about keeping something in remembrance.