Master the word " PRINCIPAL " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource. Discover the meaning of principal , what principal means, and how to use principal correctly. Complete guide with definitions, examples, and usage tips. Static GK Current Affairs Principal Vs Principle With Example The word Principle and principal are a pair of homophones that sounds similar but their meaning and usage are different. Candidates can check the list of homophones, homonyms and homographs for more such similar words along with examples for clarifications. The word principal refers to someone in authority , something of high importance, or an original sum of money. Principle, on the other hand, refers to a fundamental belief, rule, or truth.