Definition of vacation noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Vacation (noun)— is a period when people take a break from work or school to rest, relax and enjoy themselves. It often includes traveling to new places, spending time with family or friends and doing fun activities to feel happy and refreshed. VACATION meaning: 1. a period of time when you are not at home but are staying somewhere else for enjoyment: 2. a…. Learn more. Discover the meaning of vacation, what vacation means, and how to use vacation correctly. Complete guide with definitions, examples, and usage tips.