NewzThe Fundación del Español Urgente (FundéuRAE) has officially confirmed that both "bisnieto" and "biznieto" are valid spellings in the Spanish language. The clarification addresses the frequent appearance of both variations in media communications, establishing that the use of either the letter "s" or "z" is linguistically acceptable.
In-depth summary · AI, neutralSpelling tips: great-grandson and great-grandson, both valid
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Infobae (Buenos Aires, Argentina) (AR)
Connects correct spelling to professional credibility and workplace communication skills.