A customs document that allows the temporary duty-free importation of a particular article
An admission pass.
A ticket book, a collection of tickets in the form of a booklet often sold at a discount to single tickets.
A blank paper that is signed by some authority and given to a person to fill as he or she pleases.
Unlimited discretionary power to act; unrestricted authority.
As an undifferentiated mass, without regard to distinctions; willy-nilly. (Possibly from confusion with another French phrase, en masse.)