Staking is a process in which cryptocurrency holders lock up their coins or tokens in a blockchain network to help validate transactions and secure the network. In return for this, they earn rewards, often in the form of more cryptocurrency. It’s a way for participants to contribute to the network's operation, similar to mining in proof-of-work systems like Bitcoin, but with less energy consumption.

Staking is commonly associated with proof-of-stake (PoS) or delegated proof-of-stake (DPoS) blockchains, where stakers help validate new blocks and maintain the network’s integrity. By staking their assets, users essentially "delegate" their coins to support network security and in return, earn passive income through staking rewards.