menace meaning , definition , what is menace : something or someone that is dangerous: Learn more. Master the word " MENACE " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource. The meaning of MENACE is a show of intention to inflict harm : threat. How to use menace in a sentence. Menace definition : something that threatens to cause evil, harm, injury, etc.; a threat.. See examples of MENACE used in a sentence.