# Block

> A bundle of transactions added to a blockchain together.

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

## Definition

A block is a group of transactions that are confirmed at the same time. Each block includes a reference to the previous one, which is what makes the chain a chain.

Different networks produce blocks at different speeds: Bitcoin averages a block every ten minutes, Ethereum about every twelve seconds. The contents of a block, plus its place in the chain, are what get permanently recorded.

## Related terms

- [Block Height](https://fudfomo.co/glossary/block-height): The number of blocks that have been added to a blockchain since its very first one.
- [Block Reward](https://fudfomo.co/glossary/block-reward): The newly minted coins given to whoever produces a new block.
- [Transaction](https://fudfomo.co/glossary/transaction): An instruction recorded on a blockchain that moves value or runs a smart contract.
- [Blockchain](https://fudfomo.co/glossary/blockchain): A shared digital record of transactions that no single person or company controls. Everyone can read it, and changes are extremely hard to fake.

## 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