The term "of record" refers to something that has been officially documented or recorded, and there are several synonyms that can be used to describe it. One such synonym is "officially recorded", which refers to something that has been documented and verified by an authentic source. Another synonym is "on record", which means that something has been officially noted or recorded by a reliable source. "Documented" and "registered" are also synonyms for "of record", and both refer to something that has been recorded and is now on file. Ultimately, these synonyms are useful for describing any information or documentation that has been officially recorded and can be used as evidence or proof of a particular event or occurrence.