messagecode

noun
UK /ˈmɛsɪdʒ kəʊd/
US /ˈmɛsɪdʒ koʊd/

A message code is a secret set of letters or numbers that helps a computer send or read a message.

The app uses a message code to keep your texts safe.


OTHER MEANINGS

2. A short label that tells what kind of message it is.

Each email has a message code like 'urgent' or 'hello'.

3. A set of symbols used to hide a message's meaning.

The spies wrote a message code that only they could read.

4. A number that identifies a specific message in a system.

Write down the message code so we can find your note later.