Oxford Dictionary English time capsule nounnoun BrE BrE//ˈtaɪm kæpsjuːl// ; NAmE NAmE//ˈtaɪm kæpsl// , NAmE//ˈtaɪm kæpsuːl// Add to my wordlistjump to other resultsa container that is filled with objects that people think are typical of the time they are living in. It is buried so that it can be discovered by people in the future.See time capsule in the Oxford Advanced American DictionaryCheck pronunciation: time capsule oxfordlearnersdictionaries.com