There are several synonyms for the phrase "find not guilty" that can be used in legal contexts. One common synonym is "acquit", which means to declare someone as innocent of the charges against them. Another is "exonerate", which means to absolve someone of responsibility or wrongdoing. "Clear of charges", "vindicate", and "absolve" are other synonyms that can be used to convey the same meaning. Additionally, "declare innocent" and "pronounce guiltless" can also be used to express the same sentiment. Regardless of the word used, the ultimate goal is to convey that the person in question did not commit the crime they were accused of.