The phrase "on record" is a common expression that is often used in spoken and written communication. This phrase means that something is officially documented or recorded. There are various synonyms for the phrase, including "in writing," "officially registered," "documented," "recorded," and "on file." These synonyms can be used interchangeably with "on record" to convey the same message. Other possible synonyms for this phrase include "entered into the record," "chronicled," "noted," "catalogued," and "registered." Using synonyms not only makes communication more interesting but also helps to avoid repetition, thereby making the message clearer and more interesting.