matchedcode
nounUK /ˈmætʃt kəʊd/
US /ˈmætʃt koʊd/
A matched code is a secret set of letters or numbers that fits exactly with another set.
The two puzzle pieces had a matched code, so they clicked together perfectly.
OTHER MEANINGS
2. A code that has been checked and found to be the same as another code.
The game only started when the two players entered a matched code.
3. In computing, a set of instructions that agrees with a system's expected pattern.
The robot moved only after it received the matched code from the computer.
4. A pair of matching symbols used to unlock or identify something.
Each locker had a matched code written on the key and on the door.