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# code

«code» in Mova's school dictionary: **a system of letters, numbers or signs used to send secret…** — its meaning for a pupil, its sense in the lessons and examples, with 5 sentences of Mova's corpora that use it.

### part of speech

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

### meaning for a pupil

1) A code is a system of letters, numbers or signs used to send secret messages. [tree →](https://md.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://md.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://md.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://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#m4)

### sense 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://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x1)
- Can you crack my code? [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x2)
- I learned to code a simple game. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x3)
- The door opens when you type the code. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x4)
- What is your postcode? [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x5)
- In Morse code, SOS is three dots, three dashes, three dots. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x6)
- The school has a dress code. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/#x7)
- My code had a bug, so I fixed it. [tree →](https://md.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://md.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.

### In the corpora

- [Code-switching means changing how you speak or write depending on who you are with and why.](https://md.mova.elamur.ai/free/en/corpora/school/english/38-standard-english-and-dialect-we-was-and-we-were/15/)
- [In the code A = 1, B = 2 and so on, 3-1-20 spells CAT.](https://md.mova.elamur.ai/free/en/corpora/school/english/59-olympiad-real-languages-and-codes/16/)
- [In the UK the steps of road crossing are taught as the Green Cross Code.](https://md.mova.elamur.ai/free/en/corpora/school/everyday/41-crossing-the-road/17/)
- [A cheat code in a game only you play harms nobody, but showing off those scores as real would be a lie.](https://md.mova.elamur.ai/free/en/corpora/school/everyday/200-cheating-in-games/6/)
- [Cheat codes in a game only you play harm nobody, but claiming those scores as real is lying.](https://md.mova.elamur.ai/free/en/corpora/school/everyday/200-cheating-in-games/15/)

### Trees and pragmatics

[Every meaning and example of «code» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/C/code/), each sentence with its dependency tree and frames.