If you are short of something or if it is short , you do not have enough of it. If you are running short of something or if it is running short , you do not have much of it left. SHORT definition: 1. having a small distance from one end to the other: 2. continuing for a small amount of time…. Learn more. Master the word " SHORT " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.