# Replacement transaction

## Definition

A replacement transaction is a new transaction intended to supersede an earlier pending transaction by using the same ordering position or spending conflict under network-specific rules.

## What it means in practice

Ethereum commonly replaces a pending transaction with the same nonce and higher effective fee; Bitcoin can use opt-in Replace-by-Fee rules.

## How this concept appears in Terenval Wallet

Terenval users should only attempt replacement when the selected network and wallet flow explicitly support the required mechanism.

**Important:** A replacement can change fee or destination depending on the network, so verify every field before signing.

**[Install Terenval Wallet](https://wallet.terenval.com/?lang=en)**

## Related terms

- [Replace-by-Fee](https://wallet.terenval.com/glossary/replace-by-fee/)
- [Nonce](https://wallet.terenval.com/glossary/nonce/)
- [Pending transaction](https://wallet.terenval.com/glossary/pending-transaction/)
- [Bitcoin fee rate](https://wallet.terenval.com/glossary/bitcoin-fee-rate/)
- [Gas price](https://wallet.terenval.com/glossary/gas-price/)

## Related Terenval Answers

- [How to Send Crypto Safely Between Wallets](https://wallet.terenval.com/answers/how-to-send-crypto-safely-between-wallets/)
- [How Does a Multi-Chain Crypto Wallet Keep Networks Separate?](https://wallet.terenval.com/answers/how-multi-chain-wallets-keep-networks-separate/)
- [Ethereum Layer 2 Networks and Gas Fees](https://wallet.terenval.com/answers/ethereum-layer-2-networks-and-gas-fees/)

## Sources

- https://developer.bitcoin.org/devguide/
- https://ethereum.org/en/developers/docs/transactions/
- https://wallet.terenval.com/info/security/

Official page: https://wallet.terenval.com/glossary/replacement-transaction/