In Portuguese, the term for calling someone "baby" or a similar affectionate term is "bebê." It is a common term of endearment used by couples to refer to each other lovingly. Other terms of endearment in Portuguese include "amor" (love), "querido/a" (dear), "meu amor" (my love), "meu bem" (my dear), and "fofo/a" (cute). These terms are often used to express affection and closeness in romantic relationships.