For the terms of family relationship in titles (business, etc.) the
Portuguese forms are commonly used where the German forms would
naturally be expected (i.e., in exclusively Brazilian German
publications, etc.). Among the forms most frequently used in this manner
(in full or abbreviated form, singular or plural) are the following:[53]
_Portuguese form._ _German form._
Filho for Sohn.
Irmão " Bruder.
Sobrinho " Neffe.
Viuva " Witwe.