The expression "not lost" refers to something that has been found or is in its rightful place. Synonyms for this phrase include "located," "recovered," "rediscovered," "unmisplaced," "retrieved," "secured," "identified," "discovered," "tracked down," "saved," "rescued," and "reclaimed." Each of these synonyms conveys the idea that something has been found or returned to its original place, and they can be used interchangeably depending on the context. Whether it's finding a misplaced item or a person who has gone missing, these synonyms for "not lost" can help convey a sense of relief and accomplishment when something is found or returned to its rightful owner.