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# code

noun (a code, codes; code, uncountable for programs); verb (code, codes, coded, coding)

«code» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. A code is a system of letters, numbers or signs used to send secret messages. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#m1)
2. Code is the instructions written for a computer, and coding is writing them. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#m2)
3. A code is a set of numbers or letters used to identify or unlock something, like a door code or postcode. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#m3)
4. A code is a set of rules: a dress code, a code of conduct. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#m4)

### In the lessons

In computing lessons, code is a sequence of instructions (algorithm) a computer follows exactly, with loops and conditions. In maths, codes like «A=1, B=2» use patterns. In safety: never share your PIN code or passwords. Phrases: secret code, crack a code, break the code, postcode, zip code, Morse code, dress code.

### Examples

- We wrote a secret message in code. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x1)
- Can you crack my code? [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x2)
- I learned to code a simple game. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x3)
- The door opens when you type the code. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x4)
- What is your postcode? [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x5)
- In Morse code, SOS is three dots, three dashes, three dots. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x6)
- The school has a dress code. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x7)
- My code had a bug, so I fixed it. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x8)
- He was a very wise little boy, and he knew that, in Uncle Remus's eyes, he had been guilty of a flagrant violation of the family code. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x9)

### Note

Code for programs is usually uncountable: «write some code», not «write a code». Postcode (UK, Australia, Ireland: Eircode) = zip code (USA) = postal code (Canada). A cipher is a code that swaps letters.

## On Mova

- [Trees and pragmatics of «code» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«code» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/code.html) on Mova free.