@ Laurie
The best I can tell, and this is somewhat of a guess…
It appears you somehow added all (most) the addresses to your entries as a type 0 (as in zero) vs being of type Work, Home, School or Other.
So, what I did is I added was added a new address type of 0 and saved the settings. Then I renamed the 0 type from 0 to Address.
This made the labels what you want.
After I did that I rearranged the address type options putting the Address type at the top which makes it the default address type. Then I disabled the other address types so they are no longer available as options when adding new entries. You can enable them if you do indeed want them as options.
Having address types saved as type 0 is not ideal but should not hurt either.
Do you know happen how all the addresses were saved as type 0?
