Light speed
Light speed noun - The speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second.
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Synonyms for Light speed
Speed of light is a synonym for light speed. In some cases you can use "Speed of light" instead a noun phrase "Light speed".
Speed of light
Speed of light noun - The speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second.
Show all Definitions
Synonyms for Speed of light
Light speed is a synonym for speed of light. You can use "Light speed" instead a noun phrase "Speed of light".
Mutual synonyms
Both terms in one sentence
- This makes Warp 1 equal to light speed, Warp 2 just a hair over 10 times the speed of light, and Warp 9 a little more than 1500 times light speed.
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Though in Sonic Colors he is observed by Omega to be approaching the speed of light (to which Sonic comments that light speed is no challenge).
Source: Super Speed - Faster-Than-Light Travel: Usually ships are limited to light speed and wormholes, but high-tech empires can gain access to warp drives that allow ships to reach between 10 to 90 times the speed of light.
Source: Videogame / Shores of Hazeron
Cite this Source
Speed of light and Light speed. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/light_speed/speed_of_light
Light speed & Speed of light. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/light_speed/speed_of_light>.
Speed of light or Light speed. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/light_speed/speed_of_light.
