This is the 720th most frequent German word.
ehemalige
"Former" or "ex-".
'Ehemalige' is used to describe 'Fabrik', showing that the building is no longer a factory.
Die ehemalige Fabrik wurde in ein modernes Bürogebäude umgewandelt.
The former factory was transformed into a modern office building.
'Ehemalige' is used as part of 'ehemaliger Studenten', signifying that they were students in the past.
Er traf sich mit einer Gruppe ehemaliger Studenten, um Erinnerungen auszutauschen.
He met with a group of former students to share memories.
'Ehemalige' here modifies 'Lehrer', indicating that the person was a teacher in the past.