The word "wall" is a commonly used term to describe a vertical structure that separates spaces or supports a roof or ceiling. However, there are several other synonyms for the word "wall" that can add variety to your writing. Some of the common synonyms include barrier, partition, divider, panel, and enclosure. The term "fence" is also often used to describe a wall that encloses an outdoor space. For walls that are designed for defense purposes, the terms "rampart" and "fortification" can be used. In addition to these, the term "bulkhead" refers to a vertical partition within a ship or a plane.