This is the 7477th most frequent Japanese word.
元夫
Ex-husband.
In this sentence, 元夫 ('ex-husband') represents a former marital partner with whom the subject has maintained some sort of contact or relations enough to have a conversation.
元夫と久しぶりに話し合いました。
I had a discussion with my ex-husband after a long time.
Here, 元夫 ('ex-husband') indicates a person who, despite being divorced, still plays an active role, such as in family matters or responsibilities related to children.
元夫が子供の面倒を見てくれる約束をしました。
My ex-husband promised to take care of the children.
In this example, 元夫 ('ex-husband') reflects a past marital relationship concerning a third party rather than the subject.