"Alt season" in the world of crypto is a period when the prices of altcoins (all coins other than Bitcoin, such as Ethereum, Solana, Cardano, etc.) rise much faster compared to Bitcoin.

In short:

Alt = altcoin

Season = a certain season or period

Characteristics of alt season:

Bitcoin usually rises first or is stable.

Many altcoins rise by dozens to hundreds of percent in a short time.

Many investors and traders start moving funds from Bitcoin to altcoins to seek greater profits.

Usually, alt season occurs after Bitcoin hits an all-time high or is in a consolidation phase. However, there are no fixed benchmarks, so you still have to be careful as the risks are also high.