This is the 7090th most frequent Russian word.
билет
Ticket.
Here, 'билет' refers to an admission ticket for an event.
Я купил билет на концерт.
I bought a ticket to the concert.
In this context, 'билет' indicates a travel ticket, such as for a train or plane.
Она нашла старый билет из поездки в Париж.
She found an old ticket from a trip to Paris.
Here, 'билет' is used idiomatically to refer to a test or exam question, often in an educational setting.