TICKET

(PROOF OF PAYMENT) [noun] [C] - a small piece of paper or card given to someone, usually to show that they have paid for an item or activitya concert/cinema ticketa train/bus/plane ticketa lottery/raffle ticketa cloakroom ticketa season ticketticket officea (railway) ticket collectora ticket agentIt says on the door entrance by ticket only.(slightly dated) If you say that something is just the ticket, you mean that it is very suitable and exactly what you needed.