# Address

> A short string of characters that identifies a wallet on a blockchain.

Canonical URL: https://fudfomo.co/glossary/address
Source: What The Block! Dictionary v1.0 (last updated 2026-04-25), browsable at https://wtb.fudfomo.co.

## Definition

An address is the public-facing label for a wallet. It is derived from a public key and is what you share when someone wants to send you crypto.

Different blockchains use different formats: Bitcoin addresses look different from Ethereum addresses, and a Solana address is different again. Sending crypto to an address on the wrong chain almost always means the funds are lost, so wallets often warn before letting you do it.

## Related terms

- [Wallet](https://fudfomo.co/glossary/wallet): An app or device that holds the keys you need to spend and receive crypto.
- [Public Key](https://fudfomo.co/glossary/public-key): An address-like value that other people use to send you crypto. Safe to share.
- [Transaction](https://fudfomo.co/glossary/transaction): An instruction recorded on a blockchain that moves value or runs a smart contract.
- [Address Poisoning](https://fudfomo.co/glossary/address-poisoning): A scam that fills your transaction history with addresses that look almost like ones you trust, so you copy the wrong one.

## See the full catalogue

What The Block! covers more than 2,000 plain-English crypto terms, delivered as embeddable hover-state tooltips for crypto exchanges. https://wtb.fudfomo.co