"Have out" is a phrasal verb that can represent a varietyof actions, such as speaking your mind, having a discussion, or revealing something that was hidden. When it comes to synonyms for "have out," the options vary depending on the context. For instance, words such as argue, confront, debate, and discuss can be used as synonyms when referring to a verbal altercation. If the term is used with the meaning of revealing something, then words such as disclose, unveil, expose, and reveal might be more appropriate. Ultimately, the synonym choice depends on the context in which "have out" is used.