entrycode
nounUK /ˈɛntri kəʊd/
US /ˈɛntri koʊd/
A secret set of letters or numbers that lets you go into a place or open something.
She typed the entrycode on the keypad and the door opened.
OTHER MEANINGS
2. A short code written at the start of a computer file or record to mark where it begins.
The programmer added an entrycode to the top of the data file.
3. A special number used to join a game, contest, or event.
Each player got an entrycode to sign in to the tournament.
4. A label used in a list or catalog to identify one item.
The librarian checked the entrycode before adding the new book.