A woman someone used to date; an ex-girlfriend — a former romantic partner.
先週、街で偶然元彼女に会って、少し話をした。
I ran into my ex-girlfriend in town last week and talked a bit.
元彼女との写真を見ると、当時の思い出がよみがえる。
Seeing photos with my ex-girlfriend brings back memories of that time.
友達に元彼女の近況を聞かれたが、特に連絡は取っていない。
A friend asked about my ex-girlfriend, but I haven't been in contact with her.
彼は元彼女と別れてから、気持ちが吹っ切れたと言った。
He said he moved on after breaking up with his ex-girlfriend.