"Cub shark" is a term used to describe a young or small shark. However, there are several other words that can be used as synonyms for this term. For instance, some alternative words that can be used include "juveniles," "pups," "babies," "infants," or "youngsters." These words are commonly used to describe young animals, and they are appropriate for describing young sharks, as well. In addition, some specific shark species may have their own unique names for their young, such as "hatchlings" for baby hammerhead sharks. Regardless of the term used, it is important to note that these young sharks are just as important to the species as their adult counterparts.