A more thorough explanation:

Inter virum et uxorem is a Latin phrase that means "between husband and wife." It can be used as an adverb or adjective.

1. The conversation was private, meant only for inter virum et uxorem.

2. The lawyer advised the couple to keep their finances separate inter virum et uxorem.

These examples illustrate how the phrase is used to refer to something that is only between a husband and wife. In the first example, the conversation is private and only meant for the couple. In the second example, the lawyer advises the couple to keep their finances separate, which is a decision that only they can make as a married couple.