$SOL

* Solana (SOL): Solana is a popular blockchain platform known for its high transaction speeds and scalability. The hashtag often refers to the Solana cryptocurrency (SOL), its ecosystem, or developments within the Solana blockchain.

* The Sun: In scientific or astronomical contexts, "#sol" might be used as a shorthand for the Sun, our star at the center of the solar system.

The specific meaning of "#sol" will depend on the context in which it is used. If you have a particular instance of "#sol"