TRON Glossary A–Z

Permission a TRC-20 token holder grants to a smart contract to spend tokens on their behalf.

A resource used for simple TRX transfers and basic transactions. Free daily allocation for all accounts.

A TRON address starting with T that holds a smart contract. TRC-20 tokens are identified by contract address.

Delegated Proof of Stake — TRON's consensus mechanism using 27 Super Representatives.

A resource consumed when executing smart contract operations like TRC-20 transfers. Can be obtained by freezing TRX.

Locking TRX for 14 days to receive Energy and/or Bandwidth without spending TRX on each transaction.

The live TRON production network where real TRX and tokens have value.

TRON's public testnet for developers. Uses free test TRX from a faucet.

Error when a transaction requires more Energy than the account has. Fix by freezing TRX or burning TRX.

TRON's largest decentralized exchange (DEX) for swapping TRC-20 tokens.

Elected block producers on TRON (SRs). TRX holders vote for SRs and earn staking rewards.

TRON's native token format without a smart contract. Cheaper to transfer but less flexible than TRC-20.

TRON's fungible token standard — equivalent to ERC-20 on Ethereum. USDT on TRON uses TRC-20.

TRON's official API gateway for querying blockchain data and broadcasting transactions.

The most popular TRON wallet browser extension and mobile app for managing TRX and TRC-20 tokens.

The primary block explorer for TRON — view transactions, contracts, and wallet balances at tronscan.org.

JavaScript library for interacting with the TRON blockchain from Node.js or browsers.

The native cryptocurrency of the TRON blockchain, used for fees, staking, and governance.

TRON Virtual Machine — executes smart contracts on TRON, compatible with Solidity.

Tether USD stablecoin. On TRON (TRC-20) it is the most transferred stablecoin by volume.