Codes and codification

if someone breaks a code (=a secret way of writing), they learn how to understand it

CAPTCHA (computing)

computing completely automated public Turing test to tell computers and humans apart: a system for checking that a human is using a computer, often consisting of a group of letters in strange shapes that the person must type again

cipher (noun)

a secret system of writing, used for sending messages so that no one can understand them unless they know the system

code (noun)

a system of words, numbers, or signs used for sending secret messages. To put a message into code is to encode it, and to translate it back from code is to decode it

code (noun)

a set of numbers or letters that gives information about something, for example by showing what it is or when it was made

code (verb)

to mark something with a code that gives information about it

code (verb)

to mark something with a code instead of a name, so that people do not know what it is

code (verb)

to put a message in code so that it is secret

coded (adjective)

marked with letters or numbers that give information

coded (adjective)

marked with numbers or letters instead of a name

coded (adjective)

written using a secret system of words or signs

code name (noun)

a name for someone or something that you use when you want to keep their real name secret

cryptogram (noun)

a secret message written in code

cryptography (noun)

the use of codes to put information on a website into a form that can only be read by users with permission

cypher ()

another spelling of cipher

dash (noun)

a long signal used for sending messages in Morse code. Short signals are called dots.

decipher (verb)

to succeed in understanding the meaning of something written in a secret system of letters or symbols called a code

decode (verb)

to succeed in understanding the meaning of a message written in code

decode (verb)

to change digital electronic signals into a picture and sound on your television

decrypt (verb)

to change information that was in a code that could not be read or understood into a form that can be read and understood

dot (noun)

a short flash of light or sound used in Morse code (=a system for sending messages, used especially in the past). A long flash or sound is called a dash.

encode (verb)

to put secret information into code (=a system of words, numbers, or symbols that hides its real meaning)

encrypt (verb)

to put information into code (=a system of words, numbers, or symbols that hides its real meaning)

encryption (noun)

the action or process of putting information or data into code so that people who do not have permission cannot read it

mark-up language (noun)

a system of instructions that are added to documents in the form of codes to tell a computer how to print or organize the information

Morse code (noun)

a system of sending messages using signals of sound or light that represent the letters of the alphabet

private key cryptography (noun)

a way of keeping Internet messages secret in which a single key (=letter or number) changes the message into code and back again

semaphore (noun)

a system for sending messages in which you hold two flags in various positions to represent different letters and numbers

shorthand (noun)

a quick way of writing that uses symbols to represent letters, words, or phrases, used especially when you write what someone is saying as they are talking

unscramble (verb)

to change a signal or message that has been sent in code into a form that you can understand

Synonyms and antonyms of Codes and codification in British Thesaurus