Jeopardy means being in danger of being damaged or destroyed. Learn how to use this word in different contexts and see synonyms, translations and related words. JEOPARDY meaning : 1. in danger of being damaged or destroyed: 2. in danger of being damaged or destroyed: 3…. Learn more. Define jeopardy . jeopardy synonyms, jeopardy pronunciation, jeopardy translation, English dictionary definition of jeopardy . n. pl. jeop·ard·ies 1. Risk of loss or injury; peril or danger. 2. Law A defendant's risk or danger of conviction when put on trial. American Heritage®... To be in jeopardy is to be in danger . Eating three plates of nachos a day may improve your chances of winning your office's nacho-eating contest; unfortunately, it could also put your health in jeopardy. Jeopardy is a state of being, so this word is almost always preceded by the preposition "in."