"Pawn off as" is a common phrase used to describe the act of passing something off as genuine or valuable, when in reality it is not. There are several synonyms that can be used in its place, including "misrepresent," "deceive," "falsify," "fabricate," and "pretend." These words all convey a sense of dishonesty, as they describe actions designed to convince others of something that is not true. Whether used to describe a fraudulent product or a person attempting to manipulate others, these synonyms can help to paint a clearer picture of the intention behind the act of pawning something off as something it is not.