The word "nenes" is a colloquial term used to refer to infants or young children. If you are looking for synonyms for this word, there are several options, depending on the context and tone. "Babies" and "toddlers" are commonly used terms that are more formal but still convey the same meaning. Other synonyms with a more playful tone might include "little ones," "kiddos," or "tiny tots." For a more affectionate tone, you might consider terms like "darlings," "sweethearts," or "angels." Whatever synonym you choose, make sure it aligns with the intended tone and meaning of your sentence or conversation.