code
nounUK /kəʊd/
US /koʊd/
A set of secret signs or rules that people use to understand each other.
The spies sent messages in a secret code.
OTHER MEANINGS
2. Instructions that tell a computer what to do.
She wrote code to make the game work.
3. A set of laws or rules for a group.
The school has a dress code.
4. A group of numbers or letters that identifies something.
Please enter your postal code.