When you think of the phrase "brick walls," you might instantly imagine tall, sturdy barriers that are difficult to break through. However, there are plenty of synonyms for this phrase that can add variety to your writing and help you avoid repetition. Some possibilities include "masonry barriers," "stone dividers," "concrete barricades," "cement partitions," "blockades," and "fortifications." Each of these synonyms conveys a slightly different image, so choose the one that best fits the context of your writing. By using synonyms for "brick walls," you'll be able to keep your writing fresh and engaging.