> For the complete documentation index, see [llms.txt](https://docs.sumero.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sumero.finance/resources/untitled-1.md).

# Glossary of Terms

| Term              | Description                                                                                                                                                                                                                                                                                                   |
| ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Synthetic Asset   | An crypto-asset that tracks the value of something else.                                                                                                                                                                                                                                                      |
| DeFi              | Decentralised Finance                                                                                                                                                                                                                                                                                         |
| DAO               | Distributed Autonomous Organisation                                                                                                                                                                                                                                                                           |
| Clay              | Sumero's native currency                                                                                                                                                                                                                                                                                      |
| SumSwap           | Sumero's native exchange                                                                                                                                                                                                                                                                                      |
| cSynth            | A synthetic asset created on Sumero. A "clay synth" or cSynth for short.                                                                                                                                                                                                                                      |
| Collateral        | An asset of value staked to mint a synthetic asset. Sumero permits both ether (ETH) and USDC.                                                                                                                                                                                                                 |
| ETH               | Ether (ETH) is the Ethereum blockchain's native cryptocurrency.                                                                                                                                                                                                                                               |
| USDC              | A USD coin issued by centre consortium and backed by assets held in State Street bank.                                                                                                                                                                                                                        |
| zClay Bond        | A zero coupon Clay bond.                                                                                                                                                                                                                                                                                      |
| Zero Coupon Bond  | A bond that only pays interest at maturation date. There are "zero coupon" payments during its lifetime.                                                                                                                                                                                                      |
| Oracle            | Blockchain oracles are entities that connect [blockchains](https://blog.chain.link/what-is-a-blockchain-and-how-can-it-impact-the-world/) to external systems, thereby enabling [smart contracts](https://chain.link/education/smart-contracts) to execute based upon inputs and outputs from the real world. |
| Optimistic Oracle | An [optimistic oracle](https://medium.com/uma-project/introducing-umas-optimistic-oracle-d92ce5d1a4bc) is an oracle where real-world data is integrated with decentralized systems (e.g. blockchains), and the data is accepted as true if it is not disputed during a certain period.                        |