A coin designed to remain at $1 of value. You may mint stablecoins by depositing $1 of value in two parts: part collateral coins, part member coins. These are typically named oneX where X is the member coin. For example, oneBTC is Bitcoin's stablecoin and oneETH is Ethereum's stablecoin.
Multi-asset pools of crypto that enable swapping between the respective assets in those pools. ICHI leverages liquidity pools to maintain the price of stablecoins. Here is a resource that explains this concept: https://uniswap.org/docs/v2/core-concepts/pools/
ICHI sponsored farms that enable liquidity providers to earn rewards for depositing LP tokens from said pools.