SOL
n. uncountable C2 Proficiency US //ˈsɑɫ// sol
n. the name for the Sun in science and stories. You use it when talking about our solar system or in space movies.
n. the Sun, specifically when viewed as a central star within a planetary system. Often used in astronomical contexts or science fiction to distinguish the local star from others.
The planet orbits Sol once every year.
In many science fiction novels, humans refer to their home star as Sol to differentiate it from Alpha Centauri.
While the term is less common in casual conversation, astronomers occasionally use Sol to specify the Sun as the gravitational anchor of our particular solar system.
Usage
Typically used as a proper noun and capitalized, though it does not always require a definite article.