The word "superlumic" refers to something that exceeds the speed of light. There are several synonyms that can be used in place of this term, such as hyperluminal, faster-than-light, and ultrafast. Other related terms that can be used include supralight, superfast, and superrelativistic. These words are often used in the context of science fiction and space exploration, where the concept of faster-than-light travel is a popular theme. However, it is important to note that according to current scientific knowledge, traveling faster than the speed of light is not possible due to the laws of physics.