One-sentence definition:
A block is a little list of transactions made online.
Why it matters (2–3 sentences):
Blocks matter since they are records of all the transactions made ever. Without a block, there would be no hash, and the entire blockchain would fall apart.
Example (1 sentence):
If there is alot of transactions, they all get recorded in a block.
Links (internal):
- Basics post: “What is a hash and why does it matter?”
- Related glossary term: Hash