A list of words and concepts often used in speculative fiction

Sci-fi vocabulary

an interstellar cloud of dust, hydrogen gas and plasma

artificial intelligence - a computer, usually a massive computer with many CPUs that is designed to mimic the way people behave intelligently, especially with cognitive tasks

an event where a person witnesses an unidentified flying object or aliens of some kind

a world other than our own, similar to a parallel universe

capable of feeling, thought, and perception - or, otherwise intelligent

to move something or oneself using a mental power or some kind of technology