What is the collective noun for wife and children?

There isn't a single, universally accepted collective noun for "wife and children."

However, you could use a few options depending on the context:

* Family: This is the most common and straightforward option.

* Household: This emphasizes the group living together.

* Kin: This emphasizes the familial ties.

You could also use more descriptive phrases like:

* His wife and children

* His loved ones

* His immediate family

Ultimately, the best choice depends on the specific situation and the tone you want to convey.