A "former refugee" is someone who used to be a refugee but is not one anymore. They have left their home country due to a dangerous or difficult situation and have found safety and a new place to live. Full definition
He was drawn by news reports that a monument erected by former refugees had been dismantled under pressure from the Hanoi government. (nytimes.com)
In short, the «ceased circumstances» Cessation Clause constitutes an international validation of positive change in post-conflict governance and the meaningful re-establishment of the citizen - state bond, as well as providing a legal normative framework for the repatriation of former refugees. (blog.politics.ox.ac.uk)
[jounal] Powell, S. / 2003 / Posttraumatic growth after war: A study with former refugees and displaced people in Sarajevo / Journal of Clinical Psychology 59 (1): 71 ~ 83 (kci.go.kr)