Which word is synonymous with 'in addition' or 'besides' when introducing a new point?

The word that is synonymous with 'in addition' or 'besides' when introducing a new point is "furthermore." This term serves to connect ideas by indicating that an additional point will be made that supports or enhances the argument already presented. It functions similarly to "moreover," which also introduces supplementary information, but this context specifically identifies "furthermore" as the more fitting choice.

The other options do not fulfill the same role. "Consequently" indicates a result or outcome and is used to show a cause-and-effect relationship rather than introducing an additional point. "Thus" usually indicates a conclusion derived from previous statements, rather than adding another point of discussion.