The term "splinterize" refers to the process of breaking or shattering something into small, sharp fragments like a splinter. There are a number of synonyms that can be used to express this concept, depending on the specific context. Some possible options might include "shatter," "fragment," "break into pieces," "disintegrate," "crack," "smash," "pulverize," "burst," "explode," or "fracture." Each of these terms suggests slightly different nuances of the concept of splinterization, but all share the common idea of breaking something apart into smaller, sharp pieces. Whether describing shattered glass, a fractured bone, or a smashed vase, these synonyms can help to convey the sense of destruction and fragmentation that occurs when something is splinterized.