/ˈʌnbɪlɪt/ (un-BIL-it)

Definitions

1. verb

to remove a ticket or a reserved seat from a train or other vehicle

“The conductor unbilleted several passengers who failed to show up on time.”

2. noun

the act of removing a ticket or a reserved seat from a train or other vehicle

“The unbillet was noticed when the conductor checked the passenger manifest.”