# Glossary | Term | Description | | ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | USH | A stablecoin soft-pegged to the US dollar. Its value should always be close to US $1.00. Each $1 equivalent of USH is backed by at least $1.10 equivalent of collateral. | | HDG | A revenue share and governance token. It rewards market makers for providing liquidity to the system by capturing a proportional share of the protocol revenues when staked. | | Collateral | Tokens that you deposit as a guarantee for the loan that Hedge gives you. Currently, SOL is the first supported form of collateral. | | Collateral Ratio | The market value of your collateral divided by your debt (loan amount in USH). | | Liquidation | When an undercollateralized vault is liquidated, the debt and collateral are zeroed out and users who have deposited USH in a stability pool are returned discounted collateral as a reward. | | Liquidity Pool | Users can put tokens in to allow other users to swap their tokens more easily; for example from USH to SOL and from HDG to SOL. This is not native to Hedge but may be done on other platforms. | | Redemption | Any user may redeem their USH for the equivalent value in SOL. This SOL will be taken from the user’s vault with the lowest collateral ratio; after a fee is assessed, the vault owner's debt is repaid at a premium. This reduces the vault’s debt and collateral and increases the vault’s collateral ratio. | | Stability Pool | Used in liquidations; users can deposit USH and be rewarded in SOL and HDG tokens. | | Staking pool | Users can stake their HDG tokens and earn a proportional share of the protocol's revenue. | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.hedge.so/protocol-overview/glossary.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.