No, ex is used to mean 'former' and is usually used for former human relationshops such as an spouse, boyfriend, or girlfriend. Ex-school doesn't sound good. Also, 'my old girlfriend' would not mean 'my former girlfriend' but rather a girlfriend since long time.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
AnonymousOld and ex can express the same idea, or not? Yes, sometimes
We say: This is my old school OK
or
This is my ex school? No, not usually
My ex-girlfriend is standing over th