In the world of cryptocurrency, Dominance refers to the market share that a particular coin or token holds. For example, Bitcoin currently holds the largest market share in the cryptocurrency space at around 50-60% (depending on which data source you look at). This means that for every $100 worth of cryptocurrency traded, $50-$60 worth of that is Bitcoin. The dominance of a coin can fluctuate over time as new coins and tokens enter the market and gain or lose market share. For example, Ethereum's market share has grown significantly over the past year as the platform has become more widely used for building decentralized applications. While market share is not the only factor that should be considered when assessing a coin or token, it can be a helpful metric for gauging the relative strength of a project.