When it comes to verifying the authenticity or truthfulness of something, there are several synonyms for the term "is verifiable." Some of these synonyms include "can be confirmed," "can be substantiated," "can be validated," "can be attested," and "can be corroborated." All of these words suggest that the truth of the matter can be established with evidence or testimony. If something is verifiable, it means it can be proved or demonstrated to be true. It's an important quality to look for when assessing the accuracy and reliability of any claim, statement, or piece of information, and having different ways to express this concept enriches our language and communication.