matchingcode
nounUK /ˈmætʃɪŋ kəʊd/
US /ˈmætʃɪŋ koʊd/
A matching code is a secret set of letters or numbers that must be the same on two things to show they belong together.
The two puzzle pieces had a matching code on the back so we knew they fit together.
OTHER MEANINGS
2. In computer programming, a matching code is a pattern used to find and compare pieces of text.
The program used a matching code to find every word that started with 'cat'.
3. A matching code can be a number printed on two tickets to prove they are a pair.
The raffle winner was chosen when her ticket's matching code was called.
4. In games, a matching code is a symbol or color that players pair up to win.
He flipped two cards with the same matching code and scored a point.