Universe meaning : Our universe, the sum of everything that exists in the cosmos, including time and space itself. The sum of everything that exists in the cosmos, including time and space itself. An entity similar to our universe; one component of a larger entity known as the multiverse. Everything under consideration. A sample taken from the population. An imaginary collection of worlds. (films) A collection of stories with characters and settings that are less interrelated than those of sequels or prequels. A whole world, in the sense of perspective or social setting.