PREVAIL definition : 1. to get control or influence: 2. to be common among a group of people or area at a particular…. Learn more. Discover everything about the word " PREVAIL " in English: meanings , translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide. 4 meanings : 1. to prove superior; gain mastery 2. to be or appear as the most important feature; be prevalent 3. to exist.... Click for more definitions. Master the word " PREVAIL " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource.