ex-husband
The German term for ex-husband is 'Ex-Mann'. It is used to refer to a man who was previously married to someone but is no longer. The term is formed by combining the prefix 'Ex-' (meaning former) with 'Mann' (meaning man). It is used in a similar context as in English.
My ex-husband now lives in Berlin.
This phrase indicates that the person's former husband currently resides in Berlin. The term 'Ex-Mann' is being used at the beginning of the sentence, not as a suffix.
Should I cut off contact with my ex-husband?
This sentence is an example of a question in which 'Ex-Mann' is used. The speaker is considering whether or not to stop communicating with her former husband.
My sister's ex-husband is a musician.
This sentence talks about a relationship by marriage. 'Ex-Mann' here refers to the former husband of the speaker's sister who is a musician.