When it comes to "private meetings", there are several synonyms that you can use instead in order to add variety to your language. Firstly, you could use the term "confidential meetings" which carries the connotation that the information discussed in the meeting is confidential and cannot be shared publicly. Another option could be "closed-door meetings" which implies that the meeting is taking place behind closed doors, far from the public eye. A third option could be "executive sessions" which emphasizes the importance and exclusivity of the meeting, as it is generally used in the context of company executives meeting privately. So, if you want to add some variation to your language, consider using these synonyms for "private meetings".