The term "young ones" refers to individuals who are youthful or inexperienced. However, there are several synonyms that can be used instead of this phrase. "Youth" and "juveniles" are two common synonyms that accurately convey the same meaning as "young ones." Other synonyms might include "children," "teens," or "adolescents," all of which are informal terms that describe younger individuals. Additionally, "novices" and "rookies" could be used to describe individuals who are new to a particular field or activity. In summary, there are many words that can be used to describe young or inexperienced individuals, and using these synonyms can help to add variety and nuance to your writing.