Prevail over is a commonly used phrase meaning to win or succeed against someone or something. However, there are various synonyms you can use to replace this phrase depending on your context. These include triumph, conquer, reign supreme, dominate, overcome, overpower, get the better of, surpass, and win out. Each of these synonyms has nuances that differ from the other, but the underlying idea is that one is achieving victory over something or someone else. Whether you're writing an essay, report, or business proposal, using different synonyms will help you communicate your message more effectively and make your writing more interesting.