to buy on credit; to buy on account

stock up

stocking up

(slang) To do the above.

(slang) Of an adult, buying (chiefly childish) things in great amounts (due to newfound purchasing power).

gift certificate

air ticket (a pass entitling the holder to travel in an aeroplane)

a ticket (such as exchange ticket) that can be actually used

ticket for riding a means of transportation

ticket sold in advance; particularly, a ticket of admission sold on the previous day