Given Name: Wife ???
that doesnt make sense.

for custom names like that i usually use the suffix part.
so when formatted it looks like:
Alice Wonder, Wife

so on data its like:
Given Name: Alice
Family Name: Wonder
Suffix: Wife

I use suffix instead of the nickname field because many contact apps dont show the nickname field on the formatted name.

And of course using prefix field for things like:
- Dr.
- Vet.
- Taxi
etc.

if im entering a business, i leave given and family name fields empty, and enter the company name alone etc. and contact apps detect it as a business alone rather than a person.